Glossary & Picture Library, learn

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.

top

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

top

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.

top

Adamas

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

top

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.

top

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.

top

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.

top

latest news

Monday 12 June, 2017

GEM DIAMONDS FINDS TWO LARGE ROCKS AT FLAGSHIP MINE IN LESOTHO

Africa focused Gem Diamonds has discovered two diamonds bigger than 100 carats at its Letšeng mine in Lesotho, which should help the company boost revenue and investors confidence.

Tuesday 6 June, 2017

KIMBERLEY DIAMONDS CLOSES ITS LAST MINE

Controversial Australia-based miner Kimberley Diamonds has put its last remaining diamond mine into administration after it failed to secure fresh funding.

Monday 5 June, 2017

DE BEERS GOES TO COURT OVER SOUTH AFRICA EXPORT LEVY

De Beers Consolidated Mines (DBCM) is reportedly appealing to the Pretoria High Court in South Africa to set aside a decision by the South African Minister of Minerals Mosebenzi Zwane requiring DBCM to pay a levy on diamonds exported from South Africa to Botswana for the purpose of aggregation.

Thursday 18 May, 2017

DE BEERS TAPS INTO POLISHED DIAMONDS MARKET WITH FIRST-TIME AUCTION

Anglo American’s De Beers, the world’s largest rough diamond producer by value, has decided to begin selling its own polished diamonds in auctions for the first time in its history.

Wednesday 17 May, 2017

SOTHEBY'S SELLS THE APOLLO AND ARTEMIS DIAMONDS FOR £44.9 MILLION

Wednesday 10 May, 2017

US WOBBLE TAKES SHINE OFF PANDORA SALES

Pandora reported strong growth in the first quarter, but US store closures and sluggish mall traffic dented its performance stateside.

Sunday 7 May, 2017

IMPORTANT ADVICE ON HOW TO SELL YOUR DIAMONDS

If you are you considering selling your diamond, but feel as though you have no idea how or where to begin with the process?