Stone color: lively, brilliant blue. Moh's scale: 9 hardness. Accent stone size: round approx. Moh's scale: 10 hardness.
Metal type and purity: 14k white gold. Setting: basket head with diamond in bail. Chain: delicate 14k gold chain / heavier option with lobster claw available (use dropdown to select). Country of manufacturing: usa (michigan).If you have any additional questions, just hit the "ask a question" button (just to the right of the price) and we will get back to you shortly. This item is made of 14k gold, diamond and lab created blue sapphire.