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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

Oregon sunstone — specimen 0038Oregon sunstone — specimen 0038

Weight: 0.52 ct; size: 6.14 | 3.99 | 2.85 mm; shape: octagon; colour: colourless. Very clean specimen; good step cut style. Source: Gary Eisenberg, Knoxville, Tennessee.
Spinel — specimen 0041Spinel — specimen 0041

Weight: 0.10 ct; size: 3.05 | 3.04 | 1.91 mm; shape: round; colour: light violet; strong. Very clean specimen; lightly coloured; good mixed style cut.
Milky quartz — specimen 0042Milky quartz — specimen 0042

Weight: 3.42 ct; size: 10.90 | 8.07 | 5.08 mm; shape: octagon; colour: very light grey. Very clean specimen; good step style cut.
Indicolite — specimen 0043Indicolite — specimen 0043

Weight: 0.29 ct; size: 4.17 | 4.16 | 2.70 mm; shape: round; colour: light bluish green; strong. Very clean specimen; very good mixed style cut. Source: David Weinberg, Multicolour Gems Ltd.

— In granite and alkalic granite pegmatites (Anthony et al., 2001—2005). Faceted specimens are extremely rare.

Specimen figured

Gadolinite-(Y) — specimen 0087weight: 2.21 ct; shape: octagon. Clean, opaque specimen; very good step cut style. Source: John Bradshaw, Coast to Coast Rare Stones International.
Gadolinite-(Y) — specimen 0087