Glass Filled Gems: Zombie Crystals [Treatments]

Описание: Ruby and Sapphire are valuable as everyone knows, but few people are aware of their treacherous cousin: glass filled corundum. This inexpensive treated gem can be attractive and candy-like, but the price point is dust in the wind compared to the heavy prices of natural, high quality ruby or sapphire.

What is glass filling really? How can we identify it. What do we need to know? Find out all this and more today.

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