Carnelian: 16.7 mm x 12.6 mm x 5.7 mm (thickness). -Tourmaline: 19.43 mm x 10.38 mm x 5.05 mm (thickness). -Aquamarine: 16.88 mm x 9.39 mm x 5.7 mm (thickness). -Coral size -Tested 10k gold, could be 9k.
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