Diamonds Gemstones composed mostly of superheated and compressed carbon, diamonds gemstones is the hardest known substance in nature, and it's basic color once polished and cut is completely transparent. Diamonds gemstones are perhaps the most famous and valuable of the different types of gemstones because of its pure clarity and the enduring quality of the gemstones. Much romanticism surrounds diamonds gemstones because of these features and they are most sought after for wedding rings as a symbol of love's eternity.
Emerald Jewellery is the most well known type of green colored gemstone. They are beryllium-based in chemical composition, sharing this element with several equally well known gemstones like rubies and sapphires. An emerald jewellery's shade of green is unique and quite a few ancient civilizations regard this as a holy or mythic stone. More often than not, emerald jewellery gemstones are cut into simple square or circular shapes, with few variations.
Garnet jewelry is a stone whose basic color is red. The most famous red gemstone remains the ruby, yet the garnet jewelry's distinguishing factor is that it's shade of red actually approaches crimson. For this reason, some people refer to it as a "bloodstone". A very rare type of garnet jewelry however is the "fire garnet", whose color is a brighter orange instead of a deep crimson. This is more expensive than regular garnet jewelries.
Jadeite is a form of jade that is rarer than the more common form, nephrite. While both are green colored, jadeite is semi transparent, making it more closely resemble "regular" gemstones than its cousin nephrite. The purity of jadeite is higher than nephrite, and its crystal density is higher, but it tends to naturally form in smaller pieces as a result and is much harder to work with than nephrite, which can be carved like stone.