Pink Diamond – Page 4 – The Diamond Certification Laboratory of Australia (DCLA)

Mined diamond compared to laboratory grown diamond

*Mined Diamond and laboratory grown diamond*

Diamonds have long been a symbol of love, luxury, and status. However, in recent years, there has been a growing interest in the production of laboratory-grown diamonds as a more ethical and sustainable alternative to mined diamonds. In this article, we will explore the differences between a mined diamond and a laboratory-grown diamond.

Mined Diamonds:

Mined diamonds are formed naturally over millions of years deep beneath the earth’s surface. These diamonds are found in mines, usually in remote locations, and are extracted using heavy machinery and explosives. The mining process is often associated with negative environmental and social impacts, such as habitat destruction, water pollution, and exploitation of workers.

Mined diamonds are valued for their rarity and unique characteristics. The quality of a diamond is determined by the 4Cs – cut, clarity, carat weight, and colour. The more perfect a diamond is in each of these categories, the more valuable it is considered to be.

Laboratory-grown Diamonds:

Laboratory-grown diamonds are created using advanced technological processes that mimic the natural formation of diamonds. These diamonds are produced in a laboratory environment, where conditions are controlled and monitored to ensure consistent quality and purity.

The process of creating a laboratory-grown diamond involves using a small diamond seed, which is placed in a chamber and exposed to extreme heat and pressure. Over a period of weeks, carbon atoms are deposited onto the seed, gradually building up the crystal structure of the diamond.

The resulting laboratory-grown diamond is physically and chemically identical to a mined diamond, and can be graded using the same 4Cs criteria.

Differences between Mined Diamonds and Laboratory-grown Diamonds:

Mined diamonds and laboratory-grown diamonds have very similar chemical properties, as they are both made of pure carbon atoms arranged in a crystalline structure. However, there are some subtle differences in the impurities and defects that can be present in each type of diamond.

Mined diamonds can contain trace elements such as nitrogen, boron, and hydrogen, which can affect the diamond’s colour and other properties. Laboratory-grown diamonds can also contain these impurities, but they can be controlled more precisely during the growth process to produce diamonds with specific colours and properties.

One key difference between mined and laboratory-grown diamonds is the presence of defects in the crystal structure. Mined diamonds can contain defects such as vacancies, dislocations, and impurity atoms, which can affect the diamond’s hardness and other physical properties. Laboratory-grown diamonds are typically more pure and have fewer defects, which can make them more consistent in their properties and easier to work with for industrial and scientific applications.

In terms of their chemical composition, both mined and laboratory-grown diamonds are made of pure carbon, with each carbon atom bonded to four neighboring carbon atoms in a tetrahedral arrangement. This gives diamonds their unique hardness and other physical properties, as well as their optical properties such as high refractive index and dispersion.

Overall, while there are some subtle differences in the impurities and defects that can be present in mined and laboratory-grown diamonds, they are both essentially the same material in terms of their chemical properties.

One of the key differences between mined diamonds and laboratory-grown diamonds is their origin. Mined diamonds are natural, formed over millions of years in the earth’s mantle. Laboratory-grown diamonds, on the other hand, are created using advanced technological processes in a laboratory.

Another difference is the environmental and social impact of the two types of diamonds. Mined diamonds are often associated with negative environmental and social impacts, such as habitat destruction, water pollution, and exploitation of workers. Laboratory-grown diamonds, on the other hand, are generally considered to be more sustainable and ethical, as they do not involve the same level of environmental destruction or human exploitation.

Finally, there is a difference in price between mined diamonds and laboratory-grown diamonds. Mined diamonds are generally more expensive, due to their rarity and the high costs associated with mining and extraction. Laboratory-grown diamonds, on the other hand, are often less expensive, as they can be produced in larger quantities and do not require the same level of mining and extraction.

Conclusion:

Mined diamonds and laboratory-grown diamonds both have their pros and cons. While mined diamonds are valued for their rarity and unique characteristics, they are often associated with negative environmental and social impacts. Laboratory-grown diamonds, on the other hand, are more sustainable and ethical, but may be less valuable due to their artificial origin. Ultimately, the choice between a mined diamond and a laboratory-grown diamond comes down to personal values and priorities.

Source: Certin Diamond Insurance company

HRD Antwerp Hits Back at ‘Upgrading’ Allegations

HRD Antwerp has sued its former Turkish partner company following allegations the Belgian laboratory had routinely “upgraded” diamonds.

The organization is in a dispute with Enstitü Istanbul Bilim Akademisi Yönetim Danışmanlığı, with which it ended a longstanding collaboration in 2021.

The messy divorce intensified last week when the Belgian press reported allegations that HRD, in 2020, had introduced a strategy of giving diamonds higher grades than other laboratories. On Wednesday, HRD said it had taken legal action against its former partners in Turkey for “damaging its business reputation.”

Belgian lawsuit

The disagreement revolves around a civil lawsuit that Enstitü Istanbul Bilim Akademisi Yönetim Danışmanlığı filed in late 2021 against HRD at an Antwerp court, according to a March 9 report by Belgian newspaper De Tijd. Investigators have also been looking into whether there was anything suspicious about the HRD’s grading methods, the report added.

Nearly six years ago, according to De Tijd, the International Diamond Council (IDC) — which the World Federation of Diamond Bourses (WFDB) set up in the 1970s to unify diamond grading around the world — excluded HRD from its membership. In a letter to HRD’s then CEO Michel Janssens, IDC president Harry Levy wrote that it was “no longer the case” that HRD graded according to IDC rules, the newspaper reported.

By then, HRD was in a bad financial state, according to leaked internal slides that the newspaper cited. This was still the case in 2020, when another leaked document read: “With current results, HRD is out of business,” the Dutch-language report said.

In a new strategy, HRD determined that stones that already had Gemological Institute of America (GIA) reports were allowed to receive one or two color “upgrades” or one clarity “upgrade,” the report alleged. The lab was not to downgrade the diamonds unless there had been a genuine mistake, the report continued. Stones from IGI were not allowed to receive an upgrade, it said. The paper cited an internal online meeting in which Mike Davey, then director of HRD Antwerp Istanbul, shot down the policy as a “way to commit market fraud.”

In the same meeting, HRD Istanbul owner Mehmet Can Özdemir said, according to the report: “Valuing diamonds involves a certain amount of subjectivity. If things are really tight, graders can go higher or lower. But that is never about one full degree. In our scenario, we immediately jump up two.”

HRD performed an audit of its standards following the allegations and found no irregularities, its CEO, Ellen Joncheere, told Rapaport News Wednesday.

“We are in fact a bit more lenient [than the GIA] on color but stricter on cut and fluorescence, but this is known by the market,” Joncheere said.

Trademark disagreement

On Wednesday, HRD also responded with allegations that Özdemir had “made shady deals” and had used HRD’s power and reputation unfairly.

“One of the main reasons for the termination [of the partnership] was that the partners holding the management of the company did not transfer the trademark ‘HRD,’ which was unfairly registered in the name of HRD Istanbul, to the clients [HRD Antwerp], despite their previous commitments,” said Tuncay Çaltekin, HRD Antwerp’s attorney, in a statement Wednesday.

The partners also placed liens on the HRD trademark through other companies owned by their family members and transferred HRD’s assets into those companies, Çaltekin alleged. “In other words, they committed irregularities contrary to the agreement,” he claimed.

Meanwhile, Joncheere gave an interview to Belgian newspaper Het Laatste Nieuws (HLN), published Wednesday, in which she alleged there had been “tax and financial fraud” at the Turkish counterpart.

Özdemir dismissed the CEO’s claims as “pathetic, dishonest and desperate.”

Source: Diamonds.net

Will Laboratory grown diamonds take over the market ?

As of 2021 the laboratory-grown diamond trade market was estimated to be worth around $1.9 billion, according to a report by Frost & Sullivan.

This market is expected to grow significantly in the coming years, with some estimates suggesting that it could reach a value of over $15 billion by 2035.

laboratory-grown diamond trade has been growing steadily in recent years. There are several factors driving this growth.

Price: Laboratory-grown diamonds are typically less expensive than natural diamonds, which makes them an attractive option for consumers who are looking for high-quality jewelry at a more affordable price.

Ethical concerns: Some consumers are hesitant to purchase natural diamonds due to concerns about ethical issues such as conflict diamonds. Laboratory-grown diamonds are considered to be a more ethical alternative, as they are produced in a controlled environment and do not have the same potential ethical issues as natural diamonds.

Environmental concerns: The process of mining natural diamonds can have a significant environmental impact. Laboratory-grown diamonds are generally considered to be more environmentally friendly, as they do not require mining.

Advancements in technology: The technology used to produce laboratory-grown diamonds has improved significantly in recent years, making it easier and more cost-effective to produce high-quality diamonds.
All of these factors have contributed to the growth of the laboratory-grown diamond trade, and it is expected to continue to grow in the coming years.

The answer is not yet: It is worth noting that natural diamonds still hold a significant share of the diamond market, and it remains to be seen how much of an impact laboratory-grown diamonds will have on the industry as a whole over the next decade.

Source: Michael Cohen DCLA

How are diamonds priced ?

*Diamond Colour is one of the 4c’s used to calculated diamond value*

Polished diamond prices are derived from a variety of factors, including supply and demand, the quality and characteristics of the individual diamond, and market conditions.

The prices of polished diamonds are primarily determined by the 4Cs: carat weight, colour, clarity, and cut. These factors are assessed by gemologists and other experts who evaluate the diamond’s physical properties, such as its size, colour, clarity, and overall quality of cut.

Other factors that may influence the price of polished diamonds include the type of diamond, such as whether it is a natural or lab-grown diamond, the country of origin, and the overall market conditions for diamonds. Additionally, the reputation and credibility of the seller or the dealer can also affect the price of the polished diamond.

Overall, polished diamond prices are determined by a complex combination of factors, and can fluctuate over time based on changes in supply and demand, market conditions, and other economic and industry factors.
There is no single diamond price list that accurately reflects the prices of all diamonds. This is because the price of a diamond depends on a number of factors, including its size, shape, colour, clarity, and other characteristics.

That being said, there are various industry-standard diamond price lists that are commonly used as references by professionals in the diamond trade. These lists are typically based on a standardized grading system and provide price ranges for diamonds of different sizes, shapes, and quality grades.

The most commonly used diamond price list is the Rapaport Diamond Report, which provides a benchmark price for diamonds based on their 4Cs grading (carat weight, colour, clarity, and cut). However, it is important to note that the Rapaport price list only reflects the wholesale price of diamonds and may not necessarily reflect the retail price that consumers will pay.

Other diamond price lists include the International Diamond Exchange Price List, the Idex Diamond Price Report, and the Polished Prices Diamond Index, among others. These price lists may differ in their methodologies and grading systems, and the prices they list may vary slightly from one another.

Ultimately, when buying or selling a diamond, it is important to work with a reputable and knowledgeable diamond professional who can help you evaluate the diamond’s characteristics and provide you with an accurate price estimate based on current market conditions.
Source: Michael Cohen DCLA

How rare are fancy coloured diamonds and will the price increase

Argyle pink diamonds are extremely rare and highly sought-after, making them some of the most valuable diamonds in the world. The Argyle diamond mine in Western Australia is the primary source of pink diamonds, and it is estimated that only 0.01% of the diamonds recovered from the mine are pink in colour, with an even smaller percentage being of the highest quality.

The Argyle mine ceased operations in 2020, which has led to speculation that the prices of pink diamonds, including argyle pink diamonds, may increase in the coming years. With the mine no longer producing new stones, the limited supply of these rare diamonds is expected to drive up demand and prices. However, like any investment, it’s important to carefully consider market trends and consult with a qualified professional before making any decisions.

The largest pink argyle diamond found to date is the Argyle Pink Jubilee, which was discovered at the Argyle mine in Western Australia in 2011. The diamond weighs 12.76 carats and is a vivid pink colour, making it one of the largest and most valuable pink diamonds ever found. The Pink Jubilee was cut and polished over a period of ten months, during which time the rough diamond was studied and analyzed extensively to determine the best way to bring out its natural beauty and maximize its value. The diamond was sold at auction in 2013 for an undisclosed sum, but it is believed to have fetched a record-breaking price per carat for a pink diamond.

Red diamonds are extremely rare, even more so than pink diamonds. It is estimated that only a handful of natural red diamonds are found each year, and most of them are less than half a carat in size. Red diamonds are so rare that many jewelers and gemologists may go their entire careers without ever seeing one.

The red colour in diamonds is caused by the presence of a rare mineral which causes “graining,”, This occurs when the crystal structure of the diamond is distorted during its formation. The graining causes the diamond to absorb green light and reflect red light, resulting in a beautiful and distinctive red hue.
Because of their rarity, red diamonds are among the most valuable and expensive gemstones in the world. They are highly sought-after by collectors and investors, and prices for top-quality stones can reach millions of dollars per carat at auction.

Blue diamonds are also quite rare, but not as rare as pink or red diamonds. Blue diamonds account for only about 0.02% of all diamonds mined worldwide. The blue colour in diamonds is caused by the presence of trace amounts of boron during their formation, which causes the diamond to absorb red, yellow, and green light, resulting in a blue hue.

Blue diamonds are highly prized for their unique colour and rarity, and they can command very high prices at auction. The value of a blue diamond depends on a variety of factors, including its size, colour intensity, clarity, and overall quality. Blue diamonds range in colour from pale blue to vivid blue, with the most valuable stones being those with a deep, rich blue colour.

One of the most famous blue diamonds is the Hope Diamond, which is a 45.52-carat blue diamond that is part of the Smithsonian Institution’s collection of natural history specimens.

The most expensive diamond ever sold is the Pink Star, a 59.60-carat oval-cut pink diamond that was sold for $71.2 million at a Sotheby’s auction in Hong Kong in 2017. The diamond, which is the largest internally flawless fancy vivid pink diamond ever graded by the Gemological Institute of America (GIA), was mined in Africa in 1999 and took two years to cut and polish.

The Pink Star was originally sold at auction in 2013 for a record-breaking $83 million, but the sale was later cancelled after the buyer defaulted on the payment. The diamond was put back up for auction in 2017 and sold to a jewelry retailer in Hong Kong for $71.2 million, setting a new world record for the most expensive diamond ever sold at auction.

Yellow diamonds are not as rare as pink, red, or blue diamonds, but they are still considered rare and highly prized. Yellow diamonds are formed when nitrogen atoms are trapped in the crystal lattice structure of the diamond during its formation, causing it to absorb blue light and reflect yellow light.

The intensity of the yellow colour in a diamond can vary widely, ranging from a pale yellow or light lemon colour to a deep, intense yellow. The most valuable yellow diamonds are those with a deep, rich colour that is evenly distributed throughout the stone.

Yellow diamonds are mined in various parts of the world, including South Africa, Australia, and Canada. While yellow diamonds are not as rare as some other coloured diamonds, high-quality yellow diamonds can still command very high prices at auction, especially those with a large carat weight and intense colour.

Orange diamonds are considered rare and highly valuable. The orange colour in diamonds is caused by the presence of nitrogen and other impurities in the crystal lattice structure of the diamond, which absorb blue and green light, resulting in an orange hue.

Orange diamonds can range in colour from pale orange to a deep, vivid orange, with the most valuable stones being those with a pure and intense colour. Orange diamonds are not as commonly found as white or yellow diamonds and are considered much rarer than brown or gray diamonds.

The most famous orange diamond is the Pumpkin Diamond, a 5.54-carat fancy vivid orange diamond that was mined in South Africa. The Pumpkin Diamond was sold at auction in 1997 for over $1.3 million, and it is now part of the collection at the Smithsonian Institution’s National Museum of Natural History in Washington, D.C.

Source: Michael Cohen DCLA

Investor uncertainty in challenging market

It’s hard to believe that COVID first hit just over three years ago.

After the original shock that the pandemic caused, especially when lockdowns were put in place in large parts of the world in early 2020, markets, rather than continuing to crash, instead surged higher.

Stimulus programs from both central banks and central governments, which were enormous in scope, were the primary cause of this surge, with the vast quantity of dollars fed into the system leading to one of the biggest rallies in the share market, cryptocurrencies, and even real estate on record.

Since late 2021 it’s been tough going though, with the last twelve or so months particularly challenging for most investors.

A chart titled "Trend: Allocation of new client inflows" with in formation in response to the following question: "In the last year, roughly what proportion of the new client inflows you advised on went into each category? Averages among financial advisers".

Read the full article : DiamondPortfolio

Tiffany Buys Some of a Legendary Diamond Mine’s Last Finds

The new Tiffany Collection comprises 35 gems, including an unusual red stone, from the Argyle Diamond Mine in Australia.

About a year ago, a representative of the Argyle Diamond Mine — a site in Western Australia that was the pre-eminent source of pink diamonds until it closed in 2020 — approached Tiffany & Company’s chief gemologist with an unusual offer: the chance to purchase a collection of diamonds that were among the last stones taken from the mine.

The decision, Tiffany executives said, didn’t require much consideration.

“We had to do it,” Anthony Ledru, the brand’s president and chief executive, said in his bright office in New York’s Flatiron district. “It’s perfect with what we stand for.”

The purchase, which was finalized several months ago, involved 35 diamonds of various shades: pink, almost purple and even one red gem, an especially unusual color for a diamond. The gems, which had already been cut in various styles, “checked off all of those boxes: rarity, scarcity and beauty,” said Victoria Reynolds, Tiffany’s chief gemologist.

But the stones are small, ranging from 0.35 carats to 1.52 carats, considerably more petite than the statement-size gemstones frequently used in engagement rings and solitaire necklaces.

“These are small, there’s no doubt,” Ms. Reynolds said, “but for connoisseurs, collectors who understand how rare these are, it’s incredibly appealing.”

How much did the jeweler pay for what it now calls the Tiffany Collection? Mr. Ledru wouldn’t disclose the sum, but said it was “probably not enough compared to what it’s going to become in the next five, 10 years.” (He did note that it was Tiffany’s largest single purchase of 2022.)

Exactly how the diamonds will be used in jewelry hasn’t been decided, although Mr. Ledru said it was likely that they all would be used in one-of-a-kind designs. In the meantime, the diamonds are being shown to select clients in New York City and, next month, in Doha, the capital of Qatar.

The eventual prices are sure to be high. “You pay a premium for anything that says ‘Argyle pink diamond,’” said Renée Newman, an independent gemologist and author based in Los Angeles.

Source: NYT

Antwerp Diamond Polishers Develop Device That Uses AI to Grade Colored Stones

Chroma Diamonds founded by Alexander Appels and Jan De Henau is a relatively new company in the Antwerp diamond district, which specializes in colored diamonds. Stymied by the relatively “subjective process of color grading”, the 2 have set out on a mission to develop a device that provides more objective measurements for the grading of colored stones.

The device will utilize AI gathering data points and becoming smarter with each new set of inputs. They believe with sufficient time the device would learn enough to be able to more accurately grade certain stones, especially in resolving cases where certain grading criteria place the value of diamond on the edge of a color category but not quite enough to satisfy it being classified in the next grade above.

“Customers come to us with high expectations. After all, the value of their diamond is determined by, among other things, the color and intensity of that color, and let it (partly) depend on the cut and the people in the grading office, we hear. Because it is they who assign the diamond an official color, and therefore also determine its value definitively,” explains Appels.

Though this idea is not new to the Diamond District the duo has taken things one step further receiving support from the innovation process of the City of Antwerp. They plan on using and testing the device in their own business first as proof-of-concept before taking it to the greater market.

Source: Bloovi

Top Lots Smash Estimates at Phillips Jewelry Sale

A pink-diamond necklace led the most recent jewelry auction at Phillips, smashing its high estimate to bring in $1.9 million following a “fierce” bidding battle.

The oval, 4.05-carat, fancy-intense-pink diamond pendant by Boodles was estimated at $800,000 to $1.2 million at the December 13 New York sale. It is one of eight lots in the top 10 that beat their presale high price tags.

In total, the sale garnered $7.4 million, with 81% of items on offer finding buyers.

“We are delighted to conclude the year on such a high note,” said Benoît Repellin, worldwide head of jewelry for Phillips. “With enthusiastic bidding across the globe — from Egypt, to Korea, to Brazil — the sale demonstrated the continued appeal for rare colored and colorless diamonds, as well as for exceptional signed pieces.”

*A round cut-cornered rectangular modified brilliant-cut, 30.65-carat, fancy-intense-yellow diamond ring sold for $693,300, exceeding its $500,000 high estimate.*

Rio Tinto’s Unique $1.24m Midnight Sun Diamond Ring

Pink and yellow diamonds from two iconic Rio Tinto mines – Argyle and Diavik – have been brought together to create a unique ring.

It’s called Diavik Midnight Sun and has been valued at $1.24m.

An 18.08 carat fancy intense yellow oval diamond from Diavik, in sub-Arctic Canada, contrasts with an intricate setting of rare Argyle pink diamonds, from the now-closed mine in in the remote East Kimberley region of Western Australia, weighing 4.09 carats in total.

The yellow diamond was cut from a 36.75-ct rough gem, described as one of the finest large yellow diamonds uncovered at Diavik.

Rio Tinto’s general manager of sales and marketing for its diamonds business, Patrick Coppens said “This combination of a rare yellow Diavik diamond and Argyle Pink Diamonds, the rarest diamonds in the world, is a special moment in the history of Rio Tinto’s unique place in the natural fancy coloured diamond industry.

He paid tribute to luxury jeweler Musson for creating the ring. The Diavik Midnight Sun takes its inspiration from the exquisite natural phenomenon that occurs when the sun is seen at midnight in the Arctic, exhibiting beautiful golden and pink hues.

Source: IDEX