Simple and elegant, with a bit of botanically inspired finesse. The gem is an outsanding natural sapphire whosh color shifts from blue-violet in daylight to royal purple with pink flashes indoors. The minimal setting makes the gem appear to float, but is very secure. A one-of-a-kind ring for someone who loves the ususual.

• 9.7 × 8.3 mm oval purple color-shift sapphire, 3.37 ct, natural unheated, Sri Lanka

• tapered half-bezel setting with raised side details

• bottom-heavy shank to balance the top

• 950 platinum

• size 6.75