U.S.F.G. Newsletter Vol. 11 No.
3 September, 2001
SECTION A STONE DESIGN FOR 2003 NORTH AMERICAN FACETING CHALLENGE
The stone is to be cut in SYNTHETIC SPINEL, clear or any color.
STONE WIDTH to be 10mm. There will be an allowed margin of 0.1mm + or - without deduction. Three 100% errors will be deducted
if the width is outside of the margin.
GIRDLE THICKNESS to be 0.3mm + or - 0.1mm without deduction.
Girdle will be polished and judged under the same categories on the score sheet as all other facets. Two other categories are specifically
designated for the girdle alone. They are GIRDLE THICKNESS and GIRDLE UNIFORM. §
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