|Fleischman Star Diamond|
|Written by Administrator|
|Wednesday, 19 September 2007|
Fleischman Star diamond. A 74.44-carat emerald-cut canary diamond purchased by Harry Winston, New York City gem merchant, in 1956. It was recut to 71.07 carats, and set in a clip-pendant combination with 32
brilliants weighing 13 carats. The Fleischman Star Diamond was sold through the Paris branch of Harry Winston, Inc., in 1957.
Flinders diamond. A misnomer for colorless topaz from Tasmania.
floating reef. Inclusion of the surrounding rock found in kimberlite in a diamond mine. See kimberlite, reef
. floor (or weathering floor). A name given to the flat area on which the hard diamond-bearing rock (kimberlite) was once weathered as a step in the recovery process. Weathering, which will disintegrate kimberlite, was a practical step in the early days of diamond pipe mining, because near-surface rock tended to disintegrate more rapidly than that mined at greater depths. In addition, the milling equipment was cruder, and the fear of destroying large rough Diamonds was greater. The large investment in mined but nonproductive blueground and the added handling gradually led to the abandonment of this method.
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