It’s that time of year for expensive gifts. Valentine’s Day calls for diamonds and Piaget is one of the best. Their Limelight embroidery motif ring is fit for a Queen: 18K white gold, set with one brilliant-cut blue topaz (approx. 36 ct), 4 pear-cut purple sapphires (approx. 2.5 ct) and 273 brilliant-cut diamonds (approx. 2.8 ct).