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Au $2,387.40 ▲
Ag $31.85 ▲
Pt $1,012.20 ▼
Pd $978.50 ▲
Rh
Ir
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Department IV

Gemstones & Diamonds

Alchemy Trading Co. offers a curated selection of natural colored gemstones and diamonds - sapphires, rubies, spinels, emeralds, garnets, and other fine stones, in single pieces and matched lots. Each stone is accurately described and fairly priced.

Fire AgateTourmalineSapphireSpinelGarnetEmeraldChrome DiopsideAlexandriteKunziteZirconTopazMoonstoneTanzaniteAquamarineAmethystOpal
587 items
4.06ctw Heated Multi Color Sapphire Lot, 13 stones, from Madagascar · GEM-9133 4.06ctw Heated Multi Color Sapphire Lot, 13 stones, from Madagascar · GEM-9133Gem Sold $81.00 18.95ct Yellow Grossular Garnet from Africa, Cushion, 16x12.7 mm · GEM-9130 18.95ct Yellow Grossular Garnet from Africa, Cushion, 16x12.7 mm · GEM-9130Gem $38.00 14.02ct Champagne Topaz from Brazil, Oval, 14.8x12.2 mm, VS · GEM-9169 14.02ct Champagne Topaz from Brazil, Oval, 14.8x12.2 mm, VS · GEM-9169Gem $70.00 1.54ct Heated Greenish Blue Zircon from Cambodia, Cushion, 6x6 mm, VVS · GEM-9151 1.54ct Heated Greenish Blue Zircon from Cambodia, Cushion, 6x6 mm, VVS · GEM-9151Gem $39.00 0.63ct Moonstone from Madagascar, Octagon, VS 6.3 x 4.2 x 3.3 mm · GEM-9165 0.63ct Moonstone from Madagascar, Octagon, VS 6.3 x 4.2 x 3.3 mm · GEM-9165Gem Sold $13.00 3.06ctw Unheated Blue Green Sapphire Lot from Australia, 8 stones, Pear, 4.5 x 3.8 to 5.2 x 3.7 mm · GEM-9172 3.06ctw Unheated Blue Green Sapphire Lot from Australia, 8 stones, Pear, 4.5 x 3.8 to 5.2 x 3.7 mm · GEM-9172Gem Sold $77.00 3.4ct London Blue Topaz from Brazil, Pear, 12x8 mm, VVS · GEM-9171 3.4ct London Blue Topaz from Brazil, Pear, 12x8 mm, VVS · GEM-9171Gem $36.00 2.98ct Unheated Ametrine from Brazil, Octagon, 10.7x7.3x5.3 mm · GEM-9134 2.98ct Unheated Ametrine from Brazil, Octagon, 10.7x7.3x5.3 mm · GEM-9134Gem $16.00 1.01ct Heated Blue Zircon from Cambodia, Marquise, 8.3x4.2 mm, VS · GEM-9147 1.01ct Heated Blue Zircon from Cambodia, Marquise, 8.3x4.2 mm, VS · GEM-9147Gem $25.00 2.13ct Unheated Yellowish Green Tourmaline from Africa, Octagon 8.0 x 5.2 x 5.2 mm · GEM-9164 2.13ct Unheated Yellowish Green Tourmaline from Africa, Octagon 8.0 x 5.2 x 5.2 mm · GEM-9164Gem $25.00 1.05ct Violet Iolite from Tanzania, Oval, 7.8x5.5 mm · GEM-9170 1.05ct Violet Iolite from Tanzania, Oval, 7.8x5.5 mm · GEM-9170Gem $16.00 1.04ct Unheated Blue Kyanite, Round, 6 mm, from Africa · GEM-9127 1.04ct Unheated Blue Kyanite, Round, 6 mm, from Africa · GEM-9127Gem $21.00 2.12ctw Yellowish Green Sphene Lot, 4 stones, Round 4.5 to 5.2 mm, from Russia · GEM-9126 2.12ctw Yellowish Green Sphene Lot, 4 stones, Round 4.5 to 5.2 mm, from Russia · GEM-9126Gem $29.00 1.53ct Heated Blue Zircon from Cambodia, Trillion, 6.5x6 mm, VVS · GEM-9142 1.53ct Heated Blue Zircon from Cambodia, Trillion, 6.5x6 mm, VVS · GEM-9142Gem $38.00 0.29ct Green Indian Alexandrite, Oval, 5x3 mm · GEM-9144 0.29ct Green Indian Alexandrite, Oval, 5x3 mm · GEM-9144Gem $73.00 0.93ct Heated Blue Sapphire from Madagascar, Oval, 6x5 mm · GEM-9148 0.93ct Heated Blue Sapphire from Madagascar, Oval, 6x5 mm · GEM-9148Gem $19.00 2.43ct Unheated Green Tourmaline from Tanzania, Octagon, 16x5.5 mm, VVS · GEM-8961 2.43ct Unheated Green Tourmaline from Tanzania, Octagon, 16x5.5 mm, VVS · GEM-8961Gem $25.00 1.1ct Purple Spinel from Burma, Cushion, 6.3x5.5 mm, VS · GEM-8968 1.1ct Purple Spinel from Burma, Cushion, 6.3x5.5 mm, VS · GEM-8968Gem $110.00 5.32ct Blue Topaz from Brazil, Round, 10 mm, IF · GEM-8963 5.32ct Blue Topaz from Brazil, Round, 10 mm, IF · GEM-8963Gem $61.00 2.21ct Heated Green Sapphire from Madagascar, Pear, 8.8x7 mm · GEM-8984 2.21ct Heated Green Sapphire from Madagascar, Pear, 8.8x7 mm · GEM-8984Gem $77.00 1.23ct Unheated Green Tourmaline from Mozambique, Octagon, 6x5.2 mm, VS · GEM-8972 1.23ct Unheated Green Tourmaline from Mozambique, Octagon, 6x5.2 mm, VS · GEM-8972Gem $15.00 1.24ctw Heated Multi Color Sapphire Lot, 12 stones 2.8mm, Round, from Madagascar · GEM-8885 1.24ctw Heated Multi Color Sapphire Lot, 12 stones 2.8mm, Round, from Madagascar · GEM-8885Gem Sold $93.00 1.44ct Purple Spinel from Burma, Cushion, 7.5x6 mm · GEM-8907 1.44ct Purple Spinel from Burma, Cushion, 7.5x6 mm · GEM-8907Gem $43.00 0.62ct Unheated Brown-Pink Color Change Garnet, Oval, 5.3x4.3 mm, VS, from Madagascar · GEM-8892 0.62ct Unheated Brown-Pink Color Change Garnet, Oval, 5.3x4.3 mm, VS, from Madagascar · GEM-8892Gem $62.00

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