This Lightning Ridge semi-black opal flashes varied color from each angle. Peachy pink from one side and green/aqua from the other. It measures about 5 x 10mm and is wrapped in a bezel of 22k gold. This opal is accented by a pink tourmaline, orange sapphire and peridot as well as swirling vines in argentium sterling silver and gold dots. The front of the ring is a touch over 1/2 an inch tall and tapers to less than 1/4 of an inch in the back. Size fits like an 8 1/4.