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Oregon Sunstone Buying Guide

…schiller inclusions of copper and lead. Some of the finer quality schiller variety have an iridescent shimmer effect, while lower quality…

Chrome Tourmaline Buying Guide

…tourmalines graded IF (internally flawless) to VS (very small inclusions). Bright green chrome tourmaline, 0.45 cts, Africa. The inclusions


…effects, and quartz crystals with inclusions. IGS I understand you have one of the finest private collections? DEE Yes, it is considered a pretty…