A very high quality c1920 ring with a large turquoise matrix set in a heavy 18K yellow gold mounting with two European cut diamonds set on either side. Probably a men's ring originally but perfectly suitable for a man or woman.
18 x 15mm Turquoise, Approx. 0.36ctw European Cut Diamonds, 18K Gold
US Size 7 (could be resized in the 6 to 8 range for $75)