Unique necklace of 7 large natural multicolored gold and white pearls from 10.5 mm to 11 mm,

Unheated : Means that the gemstone has not been heated to reinforce its color
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.
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.