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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

Topaz — specimen 0253Topaz — specimen 0253

Weight: 1.35 ct; size: 6.02 | 5.98 | 4.10 mm; shape: octagon; colour: medium dark very strongly greenish blue; very slightly greyish. Very clean specimen of ‘London blue’ colour variety; step style cut; good polish.
Marialite-meionite series — specimen 0255Marialite-meionite series — specimen 0255

Weight: 0.39 ct; size: 6.11 | 4.02 | 2.82 mm; shape: oval; colour: light yellow; very slightly brownish. Very clean specimen; good mixed style cut. Source: Gary Eisenberg, Knoxville, Tennessee.
Sapphire — specimen 0263Sapphire — specimen 0263

Weight: 0.18 ct; size: 3.45 | 3.43 | 2.11 mm; shape: round; colour: light yellow; very slightly brownish. Very clean, not treated specimen; good brilliant style cut. Source: David Weinberg, Multicolour Gems Ltd.
Malaia garnet — specimen 0268Malaia garnet — specimen 0268

Weight: 0.19 ct; size: 3.54 | 3.51 | 2.15 mm; shape: round; colour: medium light yellowish green; slightly greyish. Very clean specimen; good brilliant style cut. Source: David Weinberg, Multicolour Gems Ltd.

— 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