Diamond Certification, security

The Spark of Confidence

Diamond Certification

The DCLA Diamond Grading Report is a comprehensive, providing all the information necessary to make an educated diamond purchase.

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

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

To prevent counterfeiting the Diamond Grading Report 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 Grading Report.

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 25 April, 2017

CHRISTIE’S TO OFFER 92CT. PENDANT

A 92.15 carat diamond pendant worth up to $20 million will lead Christie’s Magnificent Jewels auction in Geneva next month.

Thursday 20 April, 2017

GRAFF UNVEILS 105-CARAT D-FLAWLESS DIAMOND

Graff Diamonds has unveiled the 105.07 carat D flawless pear shaped diamond, it has named the Graff Vendôme after its new retail outlet at Place Vendôme in Paris.

Monday 10 April, 2017

LETSENG MINE YIELDS 114CT. DIAMOND

Gem Diamonds has found a 114-carat rough diamond at its Letšeng mine in Lesotho, the miner reported Friday.

Tuesday 4 April, 2017

SOTHEBY'S SELLS 59.6 CARAT PINK FOR $94.2 MILLION AUD

Steinmetz Diamonds owned by Israeli billionaire Benny Steinmetz, spent two years cutting and polishing the Rough diamond. Which was mined by De Beers in Botswana, Southern Africa.

Thursday 30 March, 2017

DE BEERS, LUK FOOK TO CO-BRAND GRADING REPORTS

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.