SHAY RUBY & DIAMOND MINI HALO NECKLACE This item is ready to ship in 1 - 3 days. Details: 18-karat gold Ruby: approx 0.37 cts Natural stones only Closure: Lobster Clasp Center Stone: 3x5mm Product Number: SN607 Looking for something bespoke? Contact us . Slight variations in color, shape, and size are part of their beauty.