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Some exceptional specimens of gemstones from our ‘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

Ruby — specimen 0147Ruby — specimen 0147

Weight: 0.02 ct; size: 1.96 | 1.93 | 1.20 mm; shape: round; colour: medium dark purple; strong. Small, very clean specimen; excellent brilliant style cut. Source: David Weinberg, Multicolour Gems Ltd.
Sapphire — specimen 0148Sapphire — specimen 0148

Weight: 0.18 ct; size: 4.99 | 2.54 | 1.97 mm; shape: marquise; colour: colourless. Very clean specimen; good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.
Bowenite — specimen 0152Bowenite — specimen 0152

Weight: 5.12 ct; size: 14.07 | 10.03 | 4.85 mm; shape: oval; colour: medium yellow; very slightly brownish. Clean specimen; very good cabochon style cut.
Moonstone — specimen 0162Moonstone — specimen 0162

Weight: 0.85 ct; size: 7.04 | 5.03 | 3.18 mm; shape: oval; colour: medium reddish orange; slightly brownish. Clean specimen; cabochon style cut.

— Characteristic of several facies of regionally metamorphosed rocks and some contaminated felsic igneous rocks; in contact zones between igneous and calcareous sedimentary rocks; from alteration of plagioclase (Anthony et al., 2001—2005). Faceted specimens are rare.

Specimen figured

Epidote — specimen 0054weight: 0.52 ct; shape: octagon. Very clean specimen; very good step cut style. Source: John Bradshaw, Coast to Coast Rare Stones International.
Epidote — specimen 0054