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A to Z of Diamonds GlossaryClick here to return to FAQ IndexChard 24 Carat Home Page

Diamonds Index
Round Brilliant Cut Diamond
Round Brilliant Cut Diamond

A to Z of Diamonds Glossary
Alphabetical list of main words and terms relating to diamond or diamonds, containing over 600 entries, with definitions, explanations and links to more detailed information.
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Hancock RedRed diamond, while only small, at 0.90 carats, held the world record auction price per carat for any diamond, from 1987 to 2007,
Hard, Harder HardestDiamond is the hardest known naturally occurring substance, although harder substances have been synthethised, including harder diamond! It is likely that naturally occurring harder substance will be discovered in the future, but these as likely to remain rare.
HardnessHardness can be defined and measured in numerous ways. Mohs' hardness scale is the simplest and best known scale. Hardness is directional in most gemstones.
Harry WinstonBeverley Hills jeweller with a celebrity client list. Has handled a number of large and famous diamonds.
Hatton GardenStreet and surrounding area on London, one of the two main jewellery trade areas in Britain.
HeartA fancy shape of diamond, usually a modified brilliant cut.
Hearts and ArrowsAn optical pattern discernable in some well-proportioned diamonds, and marketed as a demonstration of excellent cutting.
Heavy (Heavily) Spotted, HS, H.S.A descriptive diamond clarity grade which appears to be becoming obsolete, two grades below P3 (I3).
HerkimerVillage, Town, and County in the Adirondack Mountains of New York State. Quart crystals can be found by rockhounds. They are incorrectly and misleadingly described as "Herkimer Diamonds".
Highest PriceThere are various ways of considering the highest price paid for a diamond, total price, per carat price, and relative price in today's money. We will be adding a highest priced diamond page.
Highest Price Per CaratFrom 1987 to 2007, this record was held by the 0.90 carat Hancock's Red, but in October 2007, this was beaten by a 6.04 carat octagonal blue diamond.
Hofer, Stephen C.Author of Collecting & Classifying Coloured Diamonds, An Illustrated Study of the Aurora Collection.
HopeThe world's most famous, and infamous, blue diamond. Also the largest blue diamond, although it only just makes it into the top 100 largest diamonds.
HRD, H.R.D., Hoge Raad voor DiamantTranslates as "Antwerp Diamond High Council" in English. Represents Belgium and the Belgian diamond industry.
HueAn aspect of colour, important factor in viewing and grading fancy coloured diamonds.

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!


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