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Gemstones
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Ruby
What is the most common treatment used to improve the quality of rubies?
Lead glass filling
Color alteration
Healing of fractures
Heat treatment
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Why?
Ruby
What is the most important factor in evaluating the value of a ruby?
Color
Clarity
Cut
Carat weight
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Why?
Ruby
What is the traditional birthstone for July?
Emerald
Ruby
Sapphire
Diamond
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