Glossary
Octahedron
One of the most coveted crystal shapes for a rough diamond, with eight triangular faces that look as though two four-sided pyramids have joined together at the base.
Off-Make
Trade term for a diamond that has been badly polished or finished. It has flaws in the overall make.
Old Mine Cut
Diamond cut or shaped in an old-style cushion cut manner, with a deep pavilion depth, closed table, high crown height, and large facet on the culet.
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Oval Cut
Diamond cut or shaped into an ellipse and covered with triangular facets in a brilliant cut style.
Overblue
Refers to a diamond that glows (fluoresces) strong blue under long wave ultraviolet light; in the past the term was used misleadingly to imply a diamond with superior colour. In fact, some diamonds with a high colour grade that have very strong fluorescence can look oily or milky under daylight.
The diamond trading floor that gives all diamond buyers direct access to DCLA guaranteed diamonds from Australian diamond dealers.
latest news
Wednesday 14 July, 2010
INTERNATIONAL DIAMOND COUNCIL RELEASES IDC RULES IN RUSSIAN
The International Diamond Council (IDC) released the Russian translation of the "IDC Rules for Grading Diamonds" today in Moscow, on occasion of the 34th World Diamond Congress, the biennial congress of the World Federation of Diamond Bourses (WFDB) and the International Diamond Manufacturers Association (IDMA).
Thursday 1 July, 2010
ZIMBABWE DEFIES BAN OF MARANGE DIAMONDS
Zimbabwe’s government has resolved to defy a diamond sale ban ruled by the world approving authority, the Kimberly Process and will now begin exporting diamonds from its Chiadzwa fields.
Monday 10 May, 2010
DIAMOND PRICE INDEX PUBLISHED FOR CONSUMERS
For the first time ever, diamond jewelry consumers are going to have a diamond retail benchmark that will guide them in how much they should pay for a diamond.