Buy Certified Gemstones

Whenever we go to purchase a colored gemstone, it is necessary to think that, Is the gemstone synthetic/natural? Is the color is natural? Is it untreated & unheated?. If we speak about local gems retailer shops, they will not be ready to provide you such a wide data of Gemstones because people do not have and they sell artificial Gemstone to the consumers and because of which consumers have to face the difficulty.