Friendship, love and loyalty are represented by this historic celtic design. A Turquoise claddagh ring with your birthstone or favorite color makes it even more significant. Jade is the stone given in celebration of the 12th, 30th, and 35th anniversaries of marriage. For thousands of years, the stone has been revered in China and other countries throughout the world. Brown gemstones are gaining in popularity and smoky quartz is an affordable choice. A smoky quartz ring goes well with autumn colors and evening wear.