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Care of Filled Diamonds and Rubies

Saturday, January 19, 2013 6:37:38 AM America/Los_Angeles

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Diamonds and rubies can be filled with a glass-like substance that improves the clarity. Diamond filling goes under the name of its developer "Yehuda" and under trade names such as "Oved". During the last decade a huge amount of rubies particularly from Madagascar have been filled by a similar process. Identifying these stones is difficult for the novice and jeweler alike. For the novice idenyi...

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Posted in Education By Steve Moriarty

Colored Gemstone Clarity Grading Scale

Wednesday, January 16, 2013 4:10:16 PM America/Los_Angeles

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Grading Scale for the Clarity in Colored Gems

The value of colored gems is based on the 4 Cs of color, carat weight, cut and clarity. Clarity related to price is not quite as critical in color as it is in diamonds. It is important that colored stones are eye clean. Eye visible inclusions have a significant deduction on the value while stones above VS clarity do not generally increase in value ...

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Posted in Education By Steve Moriarty
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