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The Spark of Confidence

Glossary

Abraded Culet

The sharp point at the bottom of the diamond can become damaged and worn away with wear. An abraded culet can look “fuzzy” under magnification, and affect the polish grade of a diamond.

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Abraded Facet Edge

The sharp edges where diamond facets meet can become damaged and worn away with wear.  An abraded facet edge can look “fuzzy” under magnification, and affect the polish grade of a diamond.

Abraded Facet Edge

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Abrasion

Type of blemish that looks like a bruise or scratch on the surface of a diamond. Abrasions can affect the polish grade of a diamond.

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Adamas

Archaic Greek word from which the word ‘diamond’ is derived. Adamas means ‘indestructible’.

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Annealing

Treatment to artificially enhance the colour of a diamond with a slow-heating process. Irradiated diamonds are usually annealed to further modify or enhance their colour.

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Appraisal

Written estimate of the approximate retail replacement value of a diamond or piece of diamond jewellery. An appraisal is not a diamond certificate or diamond grading report.

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Asscher Cut

Diamond cut or shaped into a square with the corners cut off, with rows or steps of elongated facets running parallel to the girdle on both the crown and the pavilion. It is similar to an emerald cut, but squared instead of rectangular, and has a pointed culet.

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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.