Gemstone Enhancements

gemstone enhancements

gemstone enhancements

Ever since man found the first “pretty pebble” and used it for adornment he has looked for ways to improve the “pretty pebble”.  As these pebbles became appreciated for their color they became desirable – the first gemstone was “born”!

As men searched for more of these gems it was quickly recognized that they were rare and valuable.  In attempts to improve on Nature’s shape or to make the gem nicer by removing obvious blemished areas the ability to cut and shape gemstones was discovered.

Tanzanite – Tanzanite is orange-brown in color when it is mined.  Heat treating the Tanzanite changes the color to violet-blue.  The color change is permanent and is accepted as a standard treatment.

Topaz – Topaz is found in a variety of colors that range from clear to brown to peach to red and rarely blue.  The term Imperial Topaz refers to the amber gold variety.  Peach colored Topaz can be heated to a pale pink color.  The most popular “blue Topaz” color is caused by first irradiation and then heat treatment to form the Sky Blue color.  Both treatments are permanent and are accepted as standard treatment.  Another controversial treatment technique is called Vapor Diffusion.

This technique deposits a thin layer of color on top of the Topaz.  Almost any color, including rainbow effects can be created.  This treatment is not permanent and the color layer can be scratched off.  The Vapor Diffusion technique is not a standard treatment and is not generally accepted by the jewelry industry.

Topaz that has been treated by Vapor Diffusion should be identified as such by the jeweler and noted on the invoice.  Diamonds n Gold Jewelry by Spotted Pony does not sell Topaz that has been Vapor Diffusion treated.

Tourmaline – Tourmaline is found in  more color varieties than any other gem.  Generally, heat treatment and occasionally irradiation treatment are used to enhance the color of Tourmaline.  Both treatments are permanent and are accepted as standard treatment.  Occasionally Tourmalines are found that are very fractured.

Resins have been used to fill these fractures.  The use of resins to fill fractures is not generally accepted and should be disclosed by the jeweler on the invoice.  Diamonds n Gold Jewelry by Spotted Pony does not sell Tourmaline that has been resin treated.

Sapphire – Sapphire occurs in a wide variety of colors.  Heat treatment is used to improve the color and the clarity of the gemstone.  The heat treatment is permanent and is generally accepted as a standard treatment.  Sapphire that has not been heat treated is considered to be more valuable.  Another controversial treatment technique is called Vapor Diffusion.

This technique deposits a thin layer of color on top of the Sapphire.  This treatment is not permanent and the color layer can be scratched off.  The Vapor Diffusion technique is not a standard treatment and is not generally accepted by the jewelry industry.

Sapphires that have been treated by Vapor Diffusion should be identified as such by the jeweler and noted on the invoice.  Diamonds n Gold Jewelry by Spotted Pony does not sell Sapphires that have been Vapor Diffusion treated.

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