Ross-Simons - .15 ct. t. w. Diamond Open-Space Cuff Bracelet Ring in 14kt Yellow Gold. Size 7. RS Pure. Modern designs that complete your outfit and complement your personality. A must! Our dainty open-space cuff ring sparkles with .15 ct. t. w. round diamonds in a simple style that you'll never want to take off. Perfectly on trend and a minimalist favorite. 1/8" wide. Diamond open-space cuff ring. Diamond birthstones are the perfect gift for April birthdays.