Rings › Porto Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Porto $98.00 sold out 18k gold over sterling silver. Abalone, raw amethyst, and aquamarine sourced from Jaipur. Adjustable from sizes 6-12 Sold Out Added! 18k gold over sterling silver. Abalone, raw amethyst, and aquamarine sourced from Jaipur. Adjustable from sizes 6-12