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Recent Answers

2017-01-04 Jewelry, Gems, & Minerals - Green Stones in Bracelet:

Hi Yolanda,    There are some simple self tests you can do to narrow the identity of the green stones. Here are some of the answers on this subject that I have given before:

2017-01-02 Jewelry, Gems, & Minerals - Gold Ring:

Hi Lisa,  I am not a jeweler, just an expert in minerals and certain metals, but my understanding is that PSD is a manufacturers mark, especially if it is printed right after the 14k.  Gold plating marks

2016-12-16 Jewelry, Gems, & Minerals - Black Opal:

Hi Tim ,  wow man , its taken all my life to understand Opal and value , its not something I can truelly answer in a sentence or paragraph , but many years of experience . and without sounding like a goof

2016-12-15 Jewelry, Gems, & Minerals - Removing varnish from amber:

Hi Ruby,    This is going to be a difficult one. Amber is a natural resin and resins can be dissolved in / attacked by various solvents. However, real amber that has hardened over millions of years is

2016-12-14 Jewelry, Gems, & Minerals - Value of diamonds:

Artificial diamonds are manufactured commercially in viable operations worldwide, mostly for industrial purposes. There are some commercial laboratories that grow synthetic gem quality diamonds, such as


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