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The Gem Quarter: The Rainbow Connection – Multi-colour and colour-change gemstones
Image Gallery (26 Images)
Take a closer look at the fascinating phenomena that produce multi-colour and colour-change gemstones, from ametrine and alexandrite to opal and zultanite.
Take a closer look at the fascinating phenomena that produce multi-colour and colour-change gemstones, from ametrine and alexandrite to opal and zultanite.
Irene Neuwirth Earrings
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Search for Diamonds By Type - HPHT Treated Natural Colour
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