This turquoise cabochon and old mine cut diamond ring was mounted in 18kt yellow gold. This navette shaped estate ring was crafted in a time before mass production and machines. The long slender shape of this ring will flatter your finger. This Victorian turquoise and diamond ring features three turquoise cabochons and a bed of hand-cut old-mine cut diamonds. This dazzling ring measures H1 1/4 inch x W 3/8 inch x D1/4". These turquoise cabochons are oval shaped and measure: W4.3mm x H2.9mm x D1.9mm, W5.8mm x H2.9mm x D1.7mm, and W4.6mm x H2.5mm x D1.7mm. One of the turquoise cabochons is a bright sky blue. The remaining two cabochons are green-blue. These 26 diamonds are appx 1.01 ct tw, Color: G-I, Cut: Modified, hand-cut Old-Mine Cut, Clarity VS2 - SI2. 18kt yellow gold, acid tested, not hallmarked. Circa 1870.