Item Information

Dimensions (mm) 8.4 x 6.92 x 4.1mm
Weight (carats) 2.46 carats

Weight: 2.46 cts Size: 8.40 x 6.92 x 4.10 Treatment: None 

This is a beautiful purple Sri Lankan sapphire that has a very nice star.

However, for star sapphires, this practice is more accepted. GemSelect deals in star sapphires that are diffusion treated. Diffusion treatment is a popular method for treating star sapphire, as the treatment will increase the asterism (the star effect in sapphire and ruby). The diffusion process may reach half a millimeter of depth into the gemstone. The process creates the star effect on the gemstone and the stone can be sold as a diffused star sapphire. The hardness of the gemstone is not affected by the diffusion process and the gemstone therefore keeps its original physical properties. A sapphire made into a diffused star sapphire cannot be polished or recut for the second time as the treatment is only on the surface of the stone. Polishing or recutting would take off this surface treatment. However, most buyers never repolish or recut the gemstones set in jewelry. This is especially true of sapphires, as they are hard and scratch resistant gemstones.

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$160.00 USD

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Pricing & Details

Auction ID 435864
Watchers 10 watching
Viewed 1,776 times
Starts 22nd Jul 2014 7:53pm PDT

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