A ruby weighing more than four pounds came out of the ground in Myanmar’s Mogok region in mid-April. State officials described it as the most valuable giant gemstone the country has ever produced. The ...

Lab-grown gemstones can be any stones created via advanced synthetic processes as opposed to being mined from the ground. They may include diamonds, rubies, sapphires, emeralds, or any gem that looks ...

Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in ...