Diamond Certification, security

The Spark of Confidence

Diamond Certification

The DCLA Diamond Certificate is a comprehensive diamond grading report, providing all the information necessary to make an educated diamond purchase.

The DCLA Diamond Certificate guarantees the authenticity of diamonds, and rules out the possibility of a diamond being synthetic or an imitation.

The Diamond Certificate also contains a complete description of the diamond including: a unique ID number, carat weight, colour grade, clarity grade, shape, measurements, proportions, proportion grade, transparency grade, polish grade, symmetry grade, fluorescence, hue and other remarks or characteristics which determine the quality of the diamond.

The individual parameters listed above allow for accurate identification of the diamond, while the overall grade for a set of parameters provides easy understanding of a diamond’s quality.

All of these diamond quality characteristics determine the value of a diamond, and are discussed in detail under The 5 C'S of diamond grading.

The DCLA Diamond Certificate is the most important document your diamond will ever be linked to. The Diamond Certificate does not date or expire, and provides a steady foundation for calculating the replacement value of your diamond.

To prevent counterfeiting the certificate has various security features including holograms, a UV activated text seal covering the information field, special UV activated paper, and an embossed foiled crest.

DCLA also provides an Online Diamond Grading Report Check, which is your way to verify the authenticity of information for your diamond, should it be required for an insurance appraisal, or to replace a lost or damaged Diamond Certificate.

Click here to learn about our certificates

Rough or uncut Diamonds:

DCLA offers the only qualified service for rough diamonds direct from our South African DCW.

Our diamond expertise in the DCW (Diamond Cutting Works) is third generation. 

We are experts in the field of:

Marking for cleaving, laser or conventional sawing.

Our services included:

Rough diamond pricing on individual single large crystals or parcels of small rough or run of mine.

Classification of rough parcels of diamonds for colour and clarity.

Expected weight recovery of rough diamonds, for rounds or fancy shapes.

Pricing of industrial, near gem and gem quality diamonds.

Sorting of near gem rough, and their market price.

Production services:

Calculation of the retention on all shapes including octahedrons and misshapen crystals, with a predicted accurate expected weight.

Opening windows on rough diamonds, for marking and internal assessment of depth and sizes of inclusions.

Cutting and Polishing rounds and fancy shapes.

Fancy colours:

Identifying natural origin, colour banding, zoning within rough diamond crystals of fancy colours.

Proportion and expected angles for light reflection and colour intensifying the natural colour in the crystal.

latest news

Tuesday 21 March, 2017

59.6 CARAT VIVID PINK DIAMOND

Sotheby's plans to auction the famous "Pink Star" diamond an internally flawless, fancy vivid pink stone at its sale in Hong Kong on April 4.

Wednesday 8 March, 2017

GIA FINDS SIGNIFICANT UNDISCLOSED SYNTHETICS

The Gemological Institute of America (GIA) recently uncovered an unusually large number of undisclosed synthetic diamonds mixed in with natural melee diamonds, the lab confirmed with Rapaport News on Monday.

Tuesday 21 February, 2017

DE BEERS PROFIT JUMPS AS DIAMOND MARKET STABILISES

Profit more than doubled for De Beers last year as trading conditions in the diamond-manufacturing sector improved and inventory levels stabilized.

Wednesday 14 December, 2016

DCLA DIAMONDS HAS LAUNCHED

Buying a diamond can be a difficult process.

Thursday 17 November, 2016

PINK DIAMOND SELLS FOR $18M AT CHRISTIE’S GENEVA

Christie’s a pink diamond at its Magnificent Jewels auction in Geneva on Tuesday at $2 million per carat.

Wednesday 9 November, 2016

BAIN CAPITAL AND BOW STREET TO ACQUIRED BLUE NILE

In a surprise announcement, online jeweller Blue Nile has entered into an agreement to be acquired by an investor group managed by Bain Capital Private Equity and Bow Street LLC.

Thursday 3 November, 2016

GRAFF SHOWCASES THE GRAFF VENUS

The 118.78 carat type IIa diamond with no fluorescence and an excellent polish and symmetry. Is a record for a heart shape.