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Sapphire

Sapphire is a precious gemstone, a variety of the mineral corundum, an aluminium oxide (α-Al2O3). It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors. 

Significant sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, China (Shandong), Madagascar, East Africa, and in North America in a few locations, mostly in Montana. Sapphires and rubies are often found in the same geological setting. (Wikipedia)

Model: none
Pink sapphire from Vietnam. Color change from pink to red-pink. Light medium  saturation. This material is very difficult to get clean. This nodule is slightly in elongated shape and SI.Best cut pear/marquise.Dimensions:   9.5 mm x 5.0 mm x 4.4 mm116116116weight:      &..
$28.00
Model: none
Green-yellow bicolor sapphire from Madagascar. Medium saturation. This rough is shaped for good yield and SI clean. Heated only.Best cut pear.Dimensions:   12 mm x 7 mm x 5 mmweight:            3.45ct..
$39.00
Model: none
Blue sapphire from Madagascar. Good saturation. This rough is shaped for good yield and SI clean. Heated only.Best cut pear.Dimensions:   8 mm x 5 mm x 4 mmweight:            2.30ct..
$30.00
Model: none
Dark-bllue sapphire from Madagascar. Good saturation. This rough is shaped for high yield and VS clean. Heated only.Best cut oval/cushion.Dimensions:   9 mm x 7 mm x 4 mmweight:            2.80ct..
$49.00
Model: none
Blue-yellow bicolor sapphire from Madagascar. Medium saturation. This rough is SI clean. Heated only.Best cut oval/pear.Dimensions:   11 mm x 8 mm x 5 mmweight:            4.90ct..
$95.00
Model: none
Yellow-green bicolor sapphire from Madagascar. Medium saturation. This rough is shaped for good yield and SI clean. Heated only.Best cut navette/pear.Dimensions:   13 mm x 7 mm x 4 mmweight:            3.60ct..
$43.00
Model: none
Light-blue sapphire from Madagascar. Light saturation. This rough is SI clean. Heated only.Best cut oval/pear.Dimensions:   10 mm x 5 mm x 5 mmweight:            3.80ct..
$49.00
Model: none
Greenish-blue sapphire from Madagascar. Good saturation. This rough is shaped for high yield and SI clean. Heated only.Best cut trillion/pear.Dimensions:   9 mm x 8 mm x 7 mmweight:            4.65ct..
$77.00
Model: none
Blue sapphire from Madagascar. Good saturation. This rough is shaped for good yield and SI clean. Heated only.Best cut trillion/pear.Dimensions:   11 mm x 7 mm x 6 mmweight:            4.65ct..
$77.00
Model: none
Blue sapphire from Madagascar. Good saturation. This rough is shaped for high yield and SI clean. Heated only.Best cut trillion/pear.Dimensions:   12.6 mm x 9.6 mm x 6.3 mmweight:            3.55ct..
$49.00
Model: none
Yellow-green bicolor sapphire from Madagascar. Medium saturation. This rough is shaped for good yield and SI clean. Heated only.Best cut trillion/pear.Dimensions:   9 mm x 8 mm x 5 mmweight:            3.00ct..
$43.00
Model: none
Green-yellow bicolor sapphire from Madagascar. Good saturation. This rough is shaped for high yield and VS clean. Heated only.Best cut oval/cushion/pear.Dimensions:   7 mm x 6 mm x 5 mmweight:            3.00ct..
$52.00
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