Image 1 of 7 Image 2 of 7 Image 3 of 7 Image 4 of 7 Image 5 of 7 Image 6 of 7 Image 7 of 7 Unisex 3 quartz ring: "past, present, and future". $150.00 2mm thick sterling silver with 3 flush set quartz gems - amethyst, citrine, and clear quartz. Size 10 1/4. Add To Cart Added! 2mm thick sterling silver with 3 flush set quartz gems - amethyst, citrine, and clear quartz. Size 10 1/4.