Utah This rare fluorescent opal originates from an old mining claim in Utah which is now exhausted...
Andes Mountains, Peru Suitable for mounting as earrings, these two elongated pear-shaped drops are...
Andes Mountains, Peru Suitable for mounting as a necklace, pendant and ring: including a large...
Andes Mountains, Peru Suitable for mounting as a necklace and pair of earrings, these pear-shaped...
Coscuez, La Peña Blancas Muzo Mining District, Columbia Of large size for the species, this pretty...
Each composed of an oval cabochon trapiche emerald of rich bluish-green, prong set, mounted in 18K...
Muzo, Columbia Comprising a circular cabochon emerald, measuring 11.8 x 11.6 x 7.3mm, with an...
Muzo, Colombia A high domed cabochon which has been polished with a high dome to display six...
World Localities An incredible collection which took many years to create including over 200 cat's...
Yemen Bloodshote Iolite is a mixed gemstone of purplish-blue colored Iolite and red-colored...
An antique box, formed of slabs of polished goldstone glass, bordered in gilt-washed fittings...
Kerman Province, Iran Demantoid garnet is one of the most valuable members of the garnet...
Ural Mountains, Russia The phenomenon of chatoyancy is rarely seen in the mineral nephrite. The...
Brazil An oval cabochon cat's eye aquamarine having a well-saturated sea blue color and good luster...
A large, circular cabochon with excellent central cat's eye effect. with grey body color. This is a...
Arusha, Tanzania A large, deep cabochon which displays not only very fine, rich violet hue but also...
Burma Danburite is a silicate mineral found scattered throughout the planet in unassuming colors...
A large double cabochon quartz which exhibits six-rayed asterism not only on both domes but in a...
Brazil Comprising 41 spherical beads of kyanite each with chatoyancy effect, slightly graduating...
Two circular cabochons, weighing 3.18 and 4.04 carats and each measuring 9.0mm in diameter...
Tanzania Each of pear-shaped outline, having excellent blue adularescence, suitable for mounting as...
Each composed of a cluster of polished moonstone drops, having excellent blue adularescence...
Mysore, India Comprising seven oval cabochon star rubies, with weights as follows: 177.5 carats...
Democratic Republic of Congo A gem-quality variety of the feldspar group, this luscious red stone...
Burma Of oval lenticular form, this fine double-sided cabochon of rich, medium blue color with a...
Sri Lanka A circular cabochon of large size with a well-formed dome, having an excellent, central...
Aqua Calientes, Sonora, Mexico The world's only known fire agate deposits fall within two general...
Sri Lanka A classic oval cabochon star sapphire, having a desirable cornflower blue color. The star...
Jalisco, Mexico Contour polished in such a way that successive layers or bands of color inherent in...
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