Small Sparkle Hoops How to Use a Periodic Table. Bold sparkle in a perfectly sized hoopdesigned for everyday brilliance. Our Small Sparkle Hoops are perfectly sized to make a statement without holding back. Hand set crystals on both sides reflect light from every angle and the continuous hinge closure offers a seamless fit. Sized at 16mm and finished in sterling silver or 14k gold rose gold vermeil they offer long lasting durability and every day wear.