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A change in perspective  sometimes literally  could help you discover Natures beauty. In this article, IGS member Richard Edley shares his experiences discovering California turquoise and offers advice on desert prospecting. Prospecting in the Mojave Desert My day...

Like colors, gemstone transparency  whether a gem is opaque, translucent, or transparent  is a result of light interacting with the gem. Gemstone transparency isnt a precise basis for identifying gem species. However, the presence and degrees of translucence and...

Whats the difference between rubies and pink sapphires? According to one old joke, that depends on whether youre the buyer or the seller. In fact, there is no general agreement on where to draw the line, but that line is certainly pink. Defining Ruby and Sapphire...

What do you need to clean your gemstone jewelry? For many pieces, mild detergent, warm water, and a soft brush are a good start. However, before you decide to clean your collection yourself, or even if you leave it to a professional jeweler,  add a little gemology to...

VS2 diamonds have a mid-range clarity grade. But what does that mean for its appearance? Learn why a VS2 clarity diamond might be the best option for your engagement ring as well as when to opt for a different clarity. This princess-cut diamond has a VS2 clarity grade...