Whether you're shopping for a sparkling engagement ring or everyday jewelry, I rounded up the 14 best places to buy diamonds ...

Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds ... Low-quality alexandrite can sell for as little as $100, but high-quality stones can ...

A lab-grown 1.5-carat diamond was about 80% cheaper than an equivalent quality natural diamond ... having hit a high of 90% for certain loose lab diamonds in the first quarter of this year ...

GN offers retailers free analytics on high-demand natural diamonds by carat weight to maximize profits and cash flow.