The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But have you ever wondered how they get those colors? One feature of compounds ...

Their colours come from the same metal in their atomic structure The colours of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But have you ...

Everyone knows that humans can make artificial diamonds. But did you know that we can make sapphires, emeralds, and rubies as well? Did you know that this involves weird occult-like instruments, like ...

Gemstones, including rubies, emeralds, and sapphires, can be sold for cash, much the same as diamonds and other jewelry.

In a world where trends come and go, gemstones stand as symbols of elegance, making them an ideal choice for any special occasion. Set them in a delicate pendant, a bold cocktail ring, or a pair of ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Daniel Freedman, University of Wisconsin-Stout (THE CONVERSATION) The colors of rubies ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) One feature of compounds made with transition metals is their intense color. There are ...