Bague OR 18 Carats + Perles de Culture

Gold : Because of the softness of pure gold, it is alloyed with silver, copper or palladium. The proportion of these other metals give yellow, white gold. Without precision, the gold used in jewelry is 18 K, corresponding to 75% pure gold.
Yellow gold : Yellow 18K gold is an alloy contianing 75% of pure gold, whereas 14K gold contains only 58,5% of pure gold.
Pearl : Pearl are naturally found in molluscum. They can also be "cultivated" which means that a nucleus has been artificially introduced into the shell in order to induce the production of a pearl by the molluscum.
Cultured pearls : Cultured pearls are the response of a pearl oyster to a man made tissue implant. This technique is used in Japan (Akoya pearls), in Australia, in Tahiti and China (fresh water pearl oysters).