- Additional information
- What is Yusuri?
- IGS Information
Nature Yusuri handmade komboloi created with 21 natural Black Coral in barrel shape beads of 12x17mm diameter with solid sterling .925 silver metals, 38cm total length, 30cm + 8cm natural silk tassel, and 49g total weight.
Excellent quality of very rare Black Coral Beads. It comes with a gift vintage Leather pouch.
|Hexagonal (R)||1.56||3.5 to 4||2.60 to 2.64||Up to 0.160||C32H48N2O11|
IGS (International Gem Society) black and gold coral are relative newcomers to northern cultures, they have long been used as gem material in their native territories. They are found primarily off the coasts of Hawaii and Cameroon. Akori corals from Cameroon were highly prized before the eighteenth century. Hawaiian gold coral is the rarest gem coral variety and harder than other varieties. It was first described scientifically in the 1970s. The harvesting of this gem material, however, is currently restricted and cost prohibitive due to environmental considerations. The best black corals come from the Mediterranean.
Etymology: From the Greek korallion.