Some exceptional specimens of gemstones from our ‘Repository’

Repository

The section ‘Repository’ contains data and photos of 760 specimens of gemstones. The smallest is just 1.96 mm (0.02 ct) ruby from Mozambique, and the largest — 70.11 mm (326.60 ct) rock crystal from Africa.

Additionally there are 8 specimens of synthetic stones.

More specimens of gemstones

Moonstone — specimen 0095

— Weight: 3.90 ct; size: 10.22 | 8.10 | 6.32 mm; shape: oval; colour: very light yellow. Clean specimen; cabochon style cut.

Moonstone — specimen 0096

— Weight: 3.50 ct; size: 10.93 | 7.88 | 5.51 mm; shape: oval; colour: light grey. Clean specimen; cabochon style cut.

Spessartine — specimen 0098

— Weight: 0.38 ct; size: 4.29 | 4.28 | 2.93 mm; shape: round; colour: medium orangey red; strong. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.

Moonstone — specimen 0099

— Weight: 3.06 ct; size: 9.19 | 7.23 | 6.12 mm; shape: oval; colour: medium light yellow; slightly brownish. Clean specimen; cabochon style cut.

Featured

Cerussite

— Common in the oxidised zone of lead deposits, where it may constitute an important ore (Anthony et al., 2001—2005). Faceted specimens are very rare. The largest faceted stone is a 408 carat from Tsumeb, Namibia (Arem, 1987: 64).

Specimen figured

Cerussite — specimen 0029 — weight: 3.71 ct; shape: octagon. Very clean specimen; very good step cut style. Source: John Bradshaw, Coast to Coast Rare Stones International.