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Cuvette
A raised relief carved into a gemstone in a concave depression.
Density
Mass per unit volume. The amount of matter in a given space. The higher density/atomic mass of a gemstone, the more it weighs for a given size.
**Check the text: The Hall text, (pg. 123) has a beautiful picture of a blue moonstone cameo-style carving (technically it might be termed a cuvette cameo-->but more about that in Lesson 7) ...
Summer 1977, A pinkish-orange padparadscha colored synthetic spinel, p. 308, 2pp.
Fall 1977, Layers of synthetic spinel form a cuvette, p. 329, 2pp.
Summer 1980, Negative Crystals in Synthetic Verneuil Spinel, p. 333, 1p.
 See also: Jewelry, Table, Baroque, Ruby, Sapphire
  
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