GIA Laboratory – Page 3 – The Diamond Certification Laboratory of Australia (DCLA)

GIA to Give Full Color, Clarity Grades for Lab-Grown

The Gemological Institute of America (GIA) is launching a new digital report for lab-grown diamonds that will feature specific color and clarity grades. The organization, which currently only offers loose descriptions and grade ranges for synthetics, will introduce the new reports early in the fourth quarter, it said Tuesday.

The service will incorporate the GIA’s two existing lab-grown reports. Its full reports — available for stones weighing 0.15 carats and larger — will include a 4Cs assessment and plotted diagrams showing clarity and proportions. Its lower-priced “dossiers,” which are available only for stones ranging from 0.15 to 1.99 carats, will just include the 4Cs assessment and the proportions diagram. The lab will also offer specific color and clarity grades for lab-grown colored diamonds.

The GIA began grading synthetic diamonds in 2007, and has since aligned the service more with what it offers for natural stones. Until last year, it only provided descriptions of color and clarity, such as “colorless” and “slightly included.” However, from July 1, 2019, it started indicating the range of traditional color and clarity scores to which those descriptions referred — such as “D to F” and “SI1 to SI2.”

The institute has now moved a stage further, arguing that enhanced transparency will benefit consumers and the trade.

“Natural- and laboratory-grown diamonds coexist today, accepted by both consumers and the trade,” said CEO Susan Jacques. “Ensuring consumers’ trust with GIA’s reliable, independent and authoritative grading reports for all diamonds benefits the public and the entire gem and jewelry industry. We believe the growth of laboratory-grown diamonds will expand the overall diamond market and bring in new customers.”

The reports will only be available in a digital format and will feature an updated design that distinguishes them from their natural-diamond counterparts. The California-headquartered organization will continue to laser-inscribe the stones with the words “laboratory-grown” alongside the GIA report number to further ensure differentiation from naturals. The documents will still carry a statement that the graded stone may have undergone post-growth treatment to alter its color, the GIA pointed out.

The GIA is keeping the same fee structure as for natural-diamond reports since the grading work is the same, it noted.

Source: Diamonds.net

GIA Embraces Automated Clarity Grading

The Gemological Institute of America (GIA) has teamed up with IBM Research to develop an automated system for grading the clarity of a diamond.

The artificial intelligence (AI) technology uses data from tens of millions of diamonds GIA laboratories have examined in the past, applying the institute’s existing grading standards. It’s already in limited use at the GIA’s New York and Carlsbad laboratories, the institute said Monday.

Grading laboratories have increasingly invested in AI in recent years, as it promises more accurate and consistent results. Sarine Technologies unveiled its automated color and clarity grading equipment in 2016, while the GIA has been working with IBM on the joint project for around two years.

“IBM’s AI technology, combined with GIA’s expertise, extensive data and gemological-research capabilities, enables us to deliver advancements in consistency, accuracy and speed unlike any other organization,” said Tom Moses, the GIA’s executive vice president and chief laboratory and research officer.

The program will initially include the most popular diamond sizes. The GIA aims to expand it to other sizes, shapes and qualities in the future. The GIA and IBM are planning other collaborations combining gemological evaluation with AI.

Source: Diamonds.net

GIA to Reopen New York Lab

The Gemological Institute of America (GIA) is reopening its New York grading laboratory Monday following a three-month shutdown due to the coronavirus.

“As restrictions are lifted and the global gem and jewelry industry begins to recover, we are safely reopening GIA locations, returning staff to work and preparing to engage in our mission-driven activities,” GIA CEO Susan Jacques said Thursday. “We are strictly following government regulations and guidelines, implementing new processes, and adapting our facilities to keep everyone who comes to GIA — staff, clients, students and visitors — healthy and safe.”

With the 47th Street venue back in action, all 11 of the GIA’s laboratories will have unlocked their doors. The 10 other sites are steadily increasing their hours and adding extra shifts to meet growing demand for their services, the GIA said.

Meanwhile, its gemological schools in Taipei and Hong Kong are open, and all other GIA educational centers will welcome back on-campus students “in the near future,” it said.

The organization closed most of its sites in March as the virus spread, and gradually reopened them as lockdown restrictions eased. It will continue to monitor local-government and health rules in each location and adjust its services as necessary.

Source: Diamonds.net

Five GIA Labs Resume Operations

The Gemological Institute of America (GIA) has reopened laboratories in five locations following COVID-19 shutdowns.

The organization’s labs in Johannesburg and Tokyo recommenced limited operations on May 7, the GIA said Monday. Visitors to the Johannesburg lab must make an appointment, have a permit, and wear a mask. The Tokyo location will accept and return goods by delivery only.

On May 11, the GIA resumed operations at its locations in Antwerp and in Gaborone, Botswana. While Antwerp is receiving customers by appointment only, Gaborone is open with a limited capacity to comply with government mandates and allow for proper social distancing, the GIA noted. The lab in Carlsbad, California, reopened May 18, with submission of goods only accepted by shipment.

Labs in Bangkok, Hong Kong and Ramat Gan, Israel, are all open, and are operating with regular hours. Operations in Mumbai, Surat and New York remain closed.

“Our first priority is to protect the health and safety of all staff, clients and visitors,” said Tom Moses, the GIA’s executive vice president and chief research and laboratory officer. “As we work to meet our clients’ needs whenever and wherever possible, we are planning for the safe opening of all other GIA locations as soon as conditions and government authorities permit.”

Source: Diamonds.net

Sarine Ushers In Era of In-Factory Grading

Sarine Technologies has launched a new platform enabling manufacturers to tap its automated grading systems and issue a report in-house to support the needs of jewelers.

The company this week introduced its eGrading innovation via a video campaign on YouTube claiming the concept would “change diamond grading forever.” It allows manufacturers to self-execute third-party grading of the 4Cs — cut, carat weight, color and clarity — along with other personalized parameters required by the jeweler, without having to send the diamond to a grading laboratory.

“We believe the market is moving in this direction and our technology is now mature enough to make that happen,” CEO David Block told Rapaport News in a briefing at Sarine’s innovation center in Hod Hasharon, Israel.

“The digital aspect opens up the possibility to customize the report, which is difficult for a lab to achieve,” Block explained. “Once you grade the diamond at the source, the manufacturer is now responsible for its own destiny.”

The initiative builds on Sarine’s automated grading systems, with the company first announcing its ability to automate the grading of color and clarity, and therefore all the 4Cs, in 2016. It uses artificial intelligence (AI) machine learning to assess the grading results of tens of thousands of diamonds to arrive confidently at its color and clarity decision.

Empowering the manufacturer to execute the report enables it to provide a more personalized service to the jeweler. Block believes eGrading will improve efficiency for manufacturers, since they don’t have to send the stone out to the lab, while still using third-party verification. This saves on the time, expense, and opportunity cost of not having the diamond available to sell. And the retailer benefits from being able to tap the right goods from its supplier in a shorter period.

“Diamond grading is still in the Blockbuster days, where I need to send my diamond to the lab and wait for them to finish grading. They decide what goes in first and I get the stone back with certain criteria that are generally not good enough for me as I go out and sell the diamond,” he added, explaining that lab certificates are too generic.

While the retailer might want to emphasize other parameters such as the stone’s fluorescence, or different types of inclusions, among others, Block asserts it is difficult and expensive for the labs to go into the required level of detail.

Market ready

Sarine claims its technology will provide those details as the system evolves, using the same AI machine-learning principles in other parameters as it applies for color and clarity grading.

In that sense, its eGrading program isn’t a finished product, and probably never will be, because Sarine’s systems are constantly evolving and improving, according to Block. “We’re presenting our vision for where the market is heading and we have developed the technology that we believe makes this possible,” he stressed.

The company expects to reach several new milestones in 2020 as it rolls the program out to the market, Block assured, without divulging what those might be.

He believes the industry is more than ready to embrace the cultural change the company is proposing, observing that the “the midstream is very tech-savvy.”

A means to an end

Block also recognized that others may be entering the same space. Representatives from De Beers and the Gemological Institute of America (GIA) joined Block in a panel discussion at the Dubai Diamond Conference in September by asserting that automation of diamond processes will come “sooner than you think.” Each independently stressed that they’re ready to propose a solution.

Sarine is confident it can lead the way in the diamond industry’s “tech revolution,” given that technology is its core competency. Other companies that develop technology are also focused on other areas within the diamond pipeline. Technology, he emphasized, is going to play a big part in bringing about dramatic changes in the diamond industry.

In that spirit, the objective of Sarine’s eGrading initiative is to realign the emphasis currently placed on grading reports, Block added.

“Diamond grading is not a goal in and of itself. Rather, the objective is to help price a diamond and to help source what you’re looking for,” Block said. “We’re looking at how we can improve the process to get to that goal of how to source the diamond. How people source diamonds will change. It’s natural that the industry will shift in this direction.”

Source: Diamonds.net

The invisible engraving that could see you save hundreds of dollars on wedding ring insurance

Diamond grader Roy Cohen is urging Australians to get diamond rings engraved
He argued a serial number on diamond girdle could stop illegal pawn shop sale
Insurance premiums can also be reduced for jewellery inscribed with a code

A romantic marriage proposal is a significant milestone in many people’s lives.

Engagement rings can also cost tens of thousands of dollars and are commonly stolen in home invasions.

Jewellery experts are urging engaged couples to get the girdle of the diamond engraved so they can’t as easily be pawned.

This microscopic serial number could be enough to get the ring returned, and save newlyweds potentially hundreds of dollars a year in insurance premiums.

Roy Cohen, a third-generation diamond grader originally from South Africa, said these minute inscriptions increased the chance of a stolen ring being reunited with its rightful owner.

‘It’s invisible to the naked eye, it can only be seen with magnification but it’s basically a serial number,’ he told Daily Mail Australia.

‘Usually what happens is, at any pawn shop, they will take a jeweller’s loupe and they will actually have a look at the item.

‘If there’s a certificate number on the girdle of the diamond and the diamond’s been sold without the certificate, usually that does raise alarm bells.’

Mr Cohen, the director of Diamond Certification Laboratory of Australia, said engraved serial numbers on diamonds could be checked against a database, arguing this was more effective than leaving a diamond un-engraved and relying on police detective work to find a stolen item.

‘If somebody steals a diamond ring from a house in Sydney and then goes to sell it in Melbourne, there’s no way that they’re going to get found out because there’s not a lot of co-operation between states,’ he said.

His DCLA company began inscribing diamond rings in Australia in 2001, following his move from Johannesburg to Sydney.

It has now formed a partnership with underwriter Woodina to form Certified Diamond Insurance, which only insures jewellery with an inscribed serial number.

Mr Cohen, who has three decades of experience as a diamond grader, vowed customers could save up to 50 per cent off their premiums compared to traditional home and content packages.

A diamond ring worth $10,000 can be insured for $306 a year.

Jewellery is the third most stolen item stolen from Australian homes, after cash and laptops, an analysis of official burglary figures by insurer Budget Direct found.

Source: dailymail.co.uk

New Guidelines Clarify: ‘Diamond’ Means ‘Natural’

Leading groups in the diamond and jewelry sectors have collaborated to publish a universal standard to use when referring to natural diamonds and synthetics.

The Diamond Terminology Guideline is a reference on diamond vocabulary for all sector organizations, traders and retailers to use, nine industry bodies said in a joint statement Tuesday.

The document stipulates that the words “diamond” and “gemstone” imply natural origin. The industry should use “synthetic,” “laboratory-grown” or “laboratory-created,” and should avoid the terms “real,” “genuine” and “authentic,” when describing such man-made products.

“Protecting consumer confidence is of paramount importance to the long-term success of our industry,” World Jewellery Confederation (CIBJO) president Gaetano Cavalieri said. “The Diamond Terminology Guideline is an important tool in achieving this, by helping standardize the terminology used to clearly distinguish between diamonds and synthetic diamonds, in all communications, among ourselves and with our customers.”

The guidelines are based on the ISO Standard 18323 for jewelry and on CIBJO’s diamond Blue Book, which are internationally accepted benchmarks in the field.

The parties that created the document, in addition to CIBJO, are: the Antwerp World Diamond Centre (AWDC), the Diamond Producers Association (DPA), the Gem & Jewellery Export Promotion Council (GJEPC), the Israel Diamond Industry (IDI), the International Diamond Manufacturers Association (IDMA), the US Jewelry Council (USJC), the World Diamond Council (WDC) and the World Federation of Diamond Bourses (WFBD).

Source: diamonds.net

DCLA provides reports for natural origin Diamonds only.

De Beers Will Start Auctioning Other Mines Goods

De Beers will begin auctioning rough diamonds from other mining companies to provide a broader range of goods.

The company will pilot the new program this year, making it easier for customers to buy their entire supply in one place, Neil Ventura, De Beers executive vice president of auction sales, said on Monday.

“One message that’s come through from our recent customer engagements is a desire for us to develop our supply offering in certain areas, so that there is a fuller and broader range of material available for purchase,” Ventura said.

“Based on this customer feedback, in 2018 we will be testing the potential to grow our core rough-diamond sales business through making some purchases from third-party sources,” he added.

The diamonds will come from miners which De Beers has carried out due diligence, and will only be a small minority of the goods De Beers offers.

GIA Unveils Plans for Labs in Surat and Antwerp

The Gemological Institute of America (GIA) will this year open a laboratory in Surat, and expand its operations in Antwerp to include diamond grading.

The GIA has secured premises for the two locations, and expects to open both in the second quarter, it said Monday.

The Surat laboratory will bring the GIA’s services — including its Melee Analysis Service for detecting synthetics — closer to companies in that important manufacturing hub, the organization noted. In Antwerp, it will introduce diamond-grading services, and increase capacity for its mine-to-market (M2M) program, which matches rough diamonds to their resulting polished, the lab said.

“Expanding our facility in Antwerp, and opening a new location in Surat, continues GIA’s mission-driven effort to bring our research-based laboratory services for diamonds, colored stones and pearls ever closer to our clients,” said Tom Moses, the GIA’s executive vice president and chief laboratory and research officer.

Clients will be able to drop off goods for every service at both the Surat and Antwerp labs, the GIA added.

Image: Valerie Power/GIA

Source: Diamonds.net

Synthetic Diamond Fraudulently Inscribed To Match Natural Diamond Report

Improvements in diamond growth technology and methods have led to a noticeable increase in colorless synthetic gem diamonds in recent years. Concerns in the diamond industry focus on laboratory-grown diamonds not being properly disclosed or even being sold as natural stones. Through careful examination and analysis, gemological laboratories can separate natural from synthetic diamonds. Occasionally, however, fraud is involved in attempting to conceal a gem’s identity. The Carlsbad laboratory witnessed such an attempt.

On this occasion, a round brilliant cut (figure 1, left) was submitted for an updated diamond grading report. Its girdle was inscribed with an actual GIA report number issued in 2015 (figure 1, right). The older report was for a natural, untreated diamond and contained the following grading information: 1.74 ct, round brilliant cut, D color, Excellent cut grade, and VVS₁ clarity. Upon grading, the new submission was described as a 1.76 ct round brilliant cut with F color, Excellent cut grade, and VS₁ clarity. Moreover, our screening processes determined that the newly submitted sample needed additional testing to determine its origin. This examination revealed it to be an HPHT-grown synthetic diamond. Synthetic cuboctahedral growth structure and phosphorescence were clearly visible in DiamondView imaging (figure 2).

Figure 2. DiamondView imaging showed the synthetic growth structure and blue phosphorescence typical of HPHT-grown synthetic diamonds.

Aside from the observed discrepancies in weight (1.74 vs. 1.76 ct), color (D vs. F), and clarity (VVS₁ vs. VS₁), FTIR spectra clearly showed that these were not the same diamond. The natural diamond from the original report was type Ia with aggregated nitrogen impurities, while the new one was type IIb with boron impurities (figure 3). Careful examination of the report number inscribed on the synthetic diamond revealed a font different from the one used by GIA, proving that it was not an authentic inscription.

Figure 3. FTIR absorption spectra revealed that the synthetic diamond was type IIb, whereas the fraudulently inscribed report number referred to a natural type Ia diamond. The spectra are offset for clarity.

While most synthetic diamonds that come to the laboratory are properly disclosed, some are submitted out of concern that a stone presented as natural might be synthetic. Rarely do we encounter the type of blatant fraud described here. It is important for the industry and public to exercise caution, because these types of misleading practices do occur. We believe the submitting client noticed inconsistencies with the GIA report information and sent it to the lab for an updated report. If any doubt exists or some aspect of a diamond (such as an inscription) seems odd, the stone should be sent to a gemological laboratory for verification.

Source: GIA Education