Category: Crystal

Opal Unset Free-Form Crystal

Opal Unset free-form crystal from Lightning Ridge – This stone has sold. please go here to contact us Size: 21×19 mm Total Carats:11.80 ct (approx) Status: Unset Shape: Free form Registered Post: Free to your door or post office box More information about Opal Unset free-form crystal These crystal opal stones and their close cousin, white opals or milk opal are some […]

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How to Grade Rough Opal

How rough opal is Graded and Sold To grade rough opal, you might just make three piles of stones. One pile represents the stones with the greatest potential with the most obvious color and of course this is the main reason for checking the opal, because if the stones are just black or white potch, or […]

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