This lab-Created Alternating White Sapphire and Ruby Tennis Bracelet and Necklace Set is indeed a striking piece. Crafted in lustrous sterling silver, this dual color 17 inches long stunning necklace showcases 51 white created sapphire and 52 round created ruby gemstones. The matching classy, 7.25 inch long bracelet features 21 round cut white created sapphire gemstones and 21 created ruby gemstones. Finished with a brilliant shine. Ruby is the birthstone for the month of July.