whirlpool Twister Define . Design . Refine Inspired by twirling water movement of a whirlpool, our Whirlpool Twister cut brings you elegant spark with fun and modern contour any gem can offer. an inspirational signature of OAS’s unique refinement of past ideas. Ideal gift consideration for that special someone or for yourself. Stone - AAA Lemon Citrine. Metal - Solid 18k or 14k yellow gold. Weight - 4.30 gram / 21.50 carat per pair. Hangs 1.25 inch from your ear. Designed and made in NYC. o a s .