What are the Precious Stone Types ?
Emerald
Hardness | 7,5 - 8 mohs |
| Physical Structure | Emerald Cut |
| General Colors | Green, light green, yellow green, dark green, translucent and glass glow |
Distinguish Imitation Feature | Artificial emeralds spend more ultraviolet rays than unique emeralds. Generally, all emeralds do not have cloud artifacts. |
| Issued Countries | Colombia, Brazil, USA, Australia, Russia, Pakistan, Tanzania, S. Africa and India |
Ruby
Hardness | 9 mohs |
| Physical Structure | Ovoid |
| General Colors | All shades of red from light to dark, transparent and glass glossy |
Distinguish Imitation Feature | Light Star is shown in the cut. It is not seen in the cloudy artifacts inside. |
| Issued Countries | Thailand, Sri Lanka, Tanzania, Afghanistan, Australia, Brazil, Colombia, Republic of Madagascar, Malawi, Pakistan, Rhodes, America and Switzerland |
Sapphire
Hardness | 9 mohs |
| Physical Structure | Ovoid |
| General Colors | Pink, orange, yellow, green, purple, black, white, colorless and in shades ranging from light blue to dark black blue. Transparent, glass-like. The most valuable color is the color of blue water lily. |
Distinguish Imitation Feature | Imitations are made as semi-sapphire. A thin layer is made by adding green sapphire or sapphire crown on the glass of blue cobalt stone. Stellar Sapphire imitation is performed using stellar power quartz. |
| Issued Countries | USA. , Nigeria, Kenya, Tanzania, Sri Lanka, India, Thailand, Burma, Australia and China. |
Amethyst
Hardness | 7 mohs |
| Physical Structure | Ovoid |
| General Colors | Shades of bluish purple, purple, reddish purple, under varying lighting may vary slightly. |
| Issued Countries | Brazil, Uruguay, Namibia, Madagascar, Mexico, Ceylon, South Africa, America, Russia |
Aquamarine
Hardness | 7,5 - 8 mohs |
| Physical Structure | Prism |
| General Colors | Transparent from light blue to dark blue and glass-like. |
Distinguish Imitation Feature | The sun can fade under intense heat and light. |
| Issued Countries | Australia, Sri Lanka, Burma, India, Kenya, Mozambique, S.Africa, Tanzania, Rhodes, U.S.A. |
Pearl
Hardness | 3 - 4 mohs |
| Physical Structure | Bead |
| General Colors | White |