This 14k Yellow Gold Certified Alexandrite and Diamond Necklace features an oval mixed cut FGL certified 1.02ct natural Alexandrite that measures approximately 7.7 x 6.12 x 2.73mm. This alexandrite has a color-change from green to reddish. There are 18 brilliant round full cut diamonds that total .20TW. The necklace is 18″ long and adjusts to 17″, 16″, and 15″ and offers a lobster claw clasp. FGL certificate is included. DWT 2.00.