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Loose Chatham Gemstones
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Loose Natural Gemstones & Diamonds
Chatham Alexandrites: Top Color Lab Grown Alexandrites

SAVE On Top-Color Chatham Loose Alexandrites

Chatham Alexandrite Exceptional Color Change

Alexandrites exhibit the unique phenomenon known as Color Change. Under indoor lighting alexandrites can be a redish-purple while outdoors they can turn a beautiful teal green. Top quality natural alexandrites with excellent color change are rare and valuable.

Chatham cultured alexandrites exhibit excellent color change because they are grown in a controlled environment. They are not fakes, rather they are REAL alexandrites grown in a laboratory.

Get Personalized Service With One Of Our Staff GIA-Trained Graduate Gemologists
We want you to enjoy selecting the perfect Chatham lab-grown alexandrite. So we offer you the one-on-one attention you deserve to select the perfect Chatham-created alexandrite at an exceptional price. Our top-color Chatham lab created synthetic alexandrites are available in a variety of sizes and shapes including round, oval, trillion, marquise, pear, princess cut alexandrites, emerald cut and more. If you don't see the stone you're looking for below, simply call us and we'll assist you, 970-535-4139.


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Chatham Loose Gem Quality 10x5mm Marquise Alexandrite, Weighs 1.10-1.34 Ct. (SKU: CH-LGQ10x5MQAL)
Chatham Loose Gem Quality 10x7mm Pear Shape Alexandrite, Weighs 2.19-2.67 Ct. (SKU: CH-LGQ10x7PSAL)
Chatham Loose Gem Quality 10x8mm Octagon Emerald Cut Alexandrite, Weighs 3.76-4.60 Ct. (SKU: CH-LGQ10x8OCAL)
Chatham Loose Gem Quality 10x8mm Oval Alexandrite, Weighs 2.93-3.59 Ct. (SKU: CH-LGQ10x8OVAL)
Chatham Loose Gem Quality 11x9mm Octagon Emerald Cut Alexandrite, Weighs 5.60-6.40 Ct. (SKU: CH-LGQ11x9OCAL)
Chatham Loose Gem Quality 11x9mm Oval Alexandrite, Weighs 3.88-4.74 Ct. (SKU: CH-LGQ11x9OVAL)
Chatham Loose Gem Quality 11x9mm Pear Shape Alexandrite, Weighs 3.76-4.60 Ct. (SKU: CH-LGQ11x9PSAL)
Chatham Loose Gem Quality 12x10mm Octagon Emerald Cut Alexandrite, Weighs 7.00-8.00 Ct. (SKU: CH-LGQ12x10OCAL)
Chatham Loose Gem Quality 12x10mm Oval Alexandrite, Weighs 5.53-6.75 Ct. (SKU: CH-LGQ12x10OVAL)
Chatham Loose Gem Quality 3.5mm Round Alexandrite, Weighs .17-.21 Ct. (SKU: CH-LGQ350RDAL)
Chatham Loose Gem Quality 3mm Round Alexandrite, Weighs .13-.15 Ct. (SKU: CH-LGQ300RDAL)
Chatham Loose Gem Quality 3x3mm Heart Shape Alexandrite, Weighs .13-.15 Ct. (SKU: CH-LGQ3x3HSAL)
Chatham Loose Gem Quality 3x3mm Princess Cut Alexandrite, Weighs .15-.19 Ct. (SKU: CH-LGQ3x3PRAL)
Chatham Loose Gem Quality 4.5mm Round Alexandrite, Weighs .39-.47 Ct. (SKU: CH-LGQ450RDAL)
Chatham Loose Gem Quality 4mm Round Alexandrite, Weighs .30-.36 Ct. (SKU: CH-LGQ400RDAL)
Chatham Loose Gem Quality 4x4mm Heart Shape Alexandrite, Weighs .28-.34 Ct. (SKU: CH-LGQ4x4HSAL)
Chatham Loose Gem Quality 4x4mm Princess Cut Alexandrite, Weighs .35-.43 Ct. (SKU: CH-LGQ4x4PRAL)
Chatham Loose Gem Quality 4x4mm Trillion Alexandrite, Weighs .26-.32 Ct. (SKU: CH-LGQ4x4TRAL)
Chatham Loose Gem Quality 5.5mm Round Alexandrite, Weighs .68-.83 Ct. (SKU: CH-LGQ550RDAL)
Chatham Loose Gem Quality 5.5x5.5mm Princess Cut Alexandrite, Weighs .90-1.08 Ct. (SKU: CH-LGQ55x55PRAL)
Chatham Loose Gem Quality 5mm Round Alexandrite, Weighs .53-.65 Ct. (SKU: CH-LGQ500RDAL)
Chatham Loose Gem Quality 5x2mm Baguette Alexandrite, Weighs .14-.20 Ct. (SKU: CH-LGQ5x2BGAL)
Chatham Loose Gem Quality 5x3mm Baguette Alexandrite, Weighs .32-.38 Ct. (SKU: CH-LGQ5x3BGAL)
Chatham Loose Gem Quality 5x3mm Marquise Alexandrite, Weighs .20-.24 Ct. (SKU: CH-LGQ5x3MQAL)
Chatham Loose Gem Quality 5x3mm Octagon Emerald Cut Alexandrite, Weighs .30-.36 Ct. (SKU: CH-LGQ5x3OCAL)
Chatham Loose Gem Quality 5x3mm Oval Alexandrite, Weighs .26-.32 Ct. (SKU: CH-LGQ5x3OVAL)
Chatham Loose Gem Quality 5x3mm Pear Shape Alexandrite, Weighs .23-.28 Ct. (SKU: CH-LGQ5x3PSAL)
Chatham Loose Gem Quality 5x5mm Heart Shape Alexandrite, Weighs .51-.63 Ct. (SKU: CH-LGQ5x5HSAL)
Chatham Loose Gem Quality 5x5mm Princess Cut Alexandrite, Weighs .72-.88 Ct. (SKU: CH-LGQ5x5PRAL)
Chatham Loose Gem Quality 5x5mm Trillion Alexandrite, Weighs .50-.61 Ct. (SKU: CH-LGQ5x5TRAL)
Chatham Loose Gem Quality 6.5mm Round Alexandrite, Weighs 1.25-1.49 Ct. (SKU: CH-LGQ650RDAL)
Chatham Loose Gem Quality 6mm Round Alexandrite, Weighs 1.02-1.20 Ct. (SKU: CH-LGQ600RDAL)
Chatham Loose Gem Quality 6x3mm Marquise Alexandrite, Weighs .24-.30 Ct. (SKU: CH-LGQ6x3MQAL)
Chatham Loose Gem Quality 6x4mm Octagon Emerald Cut Alexandrite, Weighs .59-.72 Ct. (SKU: CH-LGQ6x4OCAL)
Chatham Loose Gem Quality 6x4mm Oval Alexandrite, Weighs .49-.59 Ct. (SKU: CH-LGQ6x4OVAL)
Chatham Loose Gem Quality 6x4mm Pear Shape Alexandrite, Weighs .48-.58 Ct. (SKU: CH-LGQ6x4PSAL)
Chatham Loose Gem Quality 6x6mm Heart Shape Alexandrite, Weighs .81-.99 Ct. (SKU: CH-LGQ6x6HSAL)
Chatham Loose Gem Quality 6x6mm Princess Cut Alexandrite, Weighs 1.24-1.52 Ct. (SKU: CH-LGQ6x6PRAL)
Chatham Loose Gem Quality 6x6mm Trillion Alexandrite, Weighs .78-.96 Ct. (SKU: CH-LGQ6x6TRAL)
Chatham Loose Gem Quality 7.5mm Round Alexandrite, Weighs 1.80-2.20 Ct. (SKU: CH-LGQ750RDAL)
Chatham Loose Gem Quality 7mm Round Alexandrite, Weighs 1.47-1.79 Ct. (SKU: CH-LGQ700RDAL)
Chatham Loose Gem Quality 7x3.5mm Marquise Alexandrite, Weighs .36-.44 Ct. (SKU: CH-LGQ7x35MQAL)
Chatham Loose Gem Quality 7x5mm Octagon Emerald Cut Alexandrite, Weighs 1.08-1.32 Ct. (SKU: CH-LGQ7x5OCAL)
Chatham Loose Gem Quality 7x5mm Oval Alexandrite, Weighs .90-1.10 Ct. (SKU: CH-LGQ7x5OVAL)
Chatham Loose Gem Quality 7x5mm Pear Shape Alexandrite, Weighs .78-.96 Ct. (SKU: CH-LGQ7x5PSAL)
Chatham Loose Gem Quality 7x7mm Heart Shape Alexandrite, Weighs 1.37-1.67 Ct. (SKU: CH-LGQ7x7HSAL)
Chatham Loose Gem Quality 7x7mm Princess Cut Alexandrite, Weighs 1.83-2.23 Ct. (SKU: CH-LGQ7x7PRAL)
Chatham Loose Gem Quality 7x7mm Trillion Alexandrite, Weighs 1.29-1.57 Ct. (SKU: CH-LGQ7x7TRAL)
Chatham Loose Gem Quality 8.5mm Round Alexandrite, Weighs 3.25-3.65 Ct. (SKU: CH-LGQ850RDAL)
Chatham Loose Gem Quality 8mm Round Alexandrite, Weighs 2.15-2.65 Ct. (SKU: CH-LGQ800RDAL)
Chatham Loose Gem Quality 8x4mm Marquise Alexandrite, Weighs .59-.73 Ct. (SKU: CH-LGQ8x4MQAL)
Chatham Loose Gem Quality 8x5mm Pear Shape Alexandrite, Weighs .92-1.12 Ct. (SKU: CH-LGQ8x5PSAL)
Chatham Loose Gem Quality 8x6mm Octagon Emerald Cut Alexandrite, Weighs 1.67-2.05 Ct. (SKU: CH-LGQ8x6OCAL)
Chatham Loose Gem Quality 8x6mm Oval Alexandrite, Weighs 1.35-1.65 Ct. (SKU: CH-LGQ8x6OVAL)
Chatham Loose Gem Quality 8x8mm Princess Cut Alexandrite, Weighs 2.79-3.41 Ct. (SKU: CH-LGQ8x8PRAL)
Chatham Loose Gem Quality 8x8mm Trillion Alexandrite, Weighs 1.70-2.08 Ct. (SKU: CH-LGQ8x8TRAL)
Chatham Loose Gem Quality 9mm Round Alexandrite, Weighs 3.73-4.13 Ct. (SKU: CH-LGQ900RDAL)
Chatham Loose Gem Quality 9x6mm Pear Shape Alexandrite, Weighs 1.46-1.78 Ct. (SKU: CH-LGQ9x6PSAL)
Chatham Loose Gem Quality 9x7mm Octagon Emerald Cut Alexandrite, Weighs 2.57-3.15 Ct. (SKU: CH-LGQ9x7OCAL)
Chatham Loose Gem Quality 9x7mm Oval Alexandrite, Weighs 1.98-2.42 Ct. (SKU: CH-LGQ9x7OVAL)
Chatham Loose Gem Quality 9x9mm Princess Cut Alexandrite, Weighs 4.19-4.99 Ct. (SKU: CH-LGQ9x9PRAL)
Chatham Loose Gem Quality 9x9mm Trillion Alexandrite, Weighs 2.70-3.30 Ct. (SKU: CH-LGQ9x9TRAL)


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