20 ct Natural Amethyst Tennis Bracelet with Diamonds in Sterling Silver Royal purple amethysts alternating with diamond accents line a sterling silver setting. NATURAL AMETHYSTS & DIAMONDS: Oval-cut natural amethysts measuring 8x6 mm total a whopping 20 ct FEBRUARY BIRTHSTONE: Bring a pop of color to the winter month and a smile to any February-born&rsquo;s face with this royal purple gemstone STERLING SILVER: Sterling Silver secures its place amongst the precious metals by possessing the perfect combination of durability and shine Piece measures 7 1/4 by 1/4 inches and feature a safety clasp.