There are a number of semiprecious gems, many quite beautiful, but diamonds, rubies, sapphires, and emeralds continue to qualify as "precious." (At one time, amethyst was also considered a ...

Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds and other jewelry. However, more often than not, those stones have very little resale value ...

The start of 2025 has seen some big releases from K-pop all-stars, particularly the solo members of BLACKPINK.

These include copper, gold, zinc, cobalt, lithium and industrial minerals, along with precious and semiprecious gemstones such as emeralds, rubies, sapphires, and lapis lazuli. China has ...