10k Yellow Gold Smoky Quartz, Amethyst, Citrine and Rhodolite Garnet Geometric Shaped Ring Sparkling ring in 10k yellow gold featuring geometric-shaped smoky quartz, amethyst, citrine, and rhodolite gemstones Gemstones may have been treated to improve their appearance or durability and may require special care. The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. Imported