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gemstone-glossary

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baguette
rectangular stone, mostly step cut

baguette princess
rectangular princess cut stone

birefringence
see double refraction

brilliant cut
round cut with 57 or 58 facets: 32 crown (upper part) facets, 24 pavilion (lower part) facets, 1 table facet and sometimes 1 culet at the tip of the stone. the girdle is not counted as a facet. the standard diamond cut.

briolette
drop- or pearshaped cut, the surface of the stone is entirely covered with triangular facets; round or oval cross section; very expensive cut with higher than average waste

bufftop
stone with facetted pavilion (lower part) and cabochon upper part. the convex upper part produces a loupe effect

bullet
a form of cabochon with an extremely high, sometimes pointed upper part

bullīs head
elongated cut-corner triangel, vaguely resembles a sketched bullīs head



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