Extra Gemstone for the "Kayan" ring:
Topaz, Citrine, Praziolite, Amethyst, Green Tourmaline, Smoky Quartz, Colorless Quartz, Pink Quartz and Greengold Quartz.
Topaz, Citrine, Prasiolite, Amethyst and Green Tourmaline are synthetic gemstones, that is, these gems are created in the laboratory with natural raw material. They are gems with the same properties of natural gemstones but have not been extracted from nature, where the action of nature has been accelerated inside a laboratory.
Smoke Quartz, Colorless Quartz, Pink Quartz and Greengold Quartz are natural gemstones.