Japanese Red Coral - 6.3 CaratSKU: PRARC00778 Origin: Japan Original Natural Red Coral weighing 6. 3 Carat (7 ratti) From Japan (IDT lab certified) Red Coral (Moonga) Coral is an organic gemstone created by living creatures, unlike other mineral based gemstones. Red Coral is made up of marine polyps that reside in clean, tropical to subtropical waters at depths of 15 to 160 feet. The lighter the hue, the deeper the coral dwells. Red Coral with a deep, ox blood hue is the most