Water | An archaic term used to describe the quality of diamonds, as in the phrase "of the first (or finest) water", probably alluding to a combination of good colour and clarity.
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Water Clear | A term sometimes used as a broad quality band in grading rough diamonds.
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Wedding | The diamond wedding anniversary is often stated as the seventy fifth (75th), but a diamond jubilee is generally recognised as the sixtieth (60th) anniversary.
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Wedding Ring, Wedding Rings | Wedding rings are often set with one or more diamonds, usually small.
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Weight, Weights | The weigh of any diamond is normally expressed in carats.
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Wesselton | South African diamond mine, also near obsolete name of a diamond colour.
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West 47th Street | West 47th Street is the central location of the diamond industry in New York and the USA.
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Wettability | Diamond is highly resistant to wetting by water. We will attempt to add a scientific explanation of this phenomenon at a later date.
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WFDB, W.F.D.B., World Federation of Diamond Bourses | See our Bourse page.
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White | When we rather lazily refer to diamonds as white, we actually mean colourless.
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White Diamond | The name of Werner Herzog's film about British engineer Graham Dorrington's air-ship expedition over Guyana.
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White Diamonds | White Diamonds is the name of a fragrance marketed under Elizabeth Taylor's name.
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White Light | Light containing a balanced full spectrum of colours, so that it appears colourless.
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Window | A small facet polished on a rough diamond, through its skin, to allow a diamanteer to observe and map any internal features of the diamond prior to cutting. Also an area of a gemstone which "leaks" light or colour usually due to poor, often shallow, cutting.
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Winston, Harry | Jeweller with a store on Rodeo Drive, Beverley Hills, who is known as the "Jeweler to the Stars".
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Wisp | An inclusion or clarity feature due to twinning, an irregularity in the crystal growth.
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WDC, W.D.C., World Diamond Council | Formed in July 2000 by the World Federation of Diamond Bourses and the International Diamond Manufacturers Association at their Antwerp meeting.
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There are currently over 600 entries in this table.
Over 90 of them have page links to a page on this site. Eventually, we intend to add a more complete description for most entries, each on its own page.
Please watch this space!