natural
-
Aug 23, 2023
Two exquisitely clear faceted carbon crystals radiate a mesmerizing array of spectral colors when illuminated directly. Their appearances are nearly...
-
Aug 17, 2023
Simulated diamonds, also called diamond simulants, may look like diamonds, but they don’t have the same chemical, physical and optical...
-
Jun 7, 2019
Introduction The pearl is seen as one of the most traditional gems in jewellery. For centuries, it has been used...