The show follows Steven, a young boy living with a group of female alien heroes called the Crystal Gems, fighting to defend Earth from other aliens who seek to conquer the planet. Rebecca Sugar ...

However gem quality diamonds are fashioned from the original crystal shape they possess a combination of brightness, sparkle, fire, and sense of purity not matched by other gems. - Jeff Scovil, ...

Photos by Gagan Choudhary. Recently examined was a faceted rock crystal backed by a slice of turquoise—an obvious but unusual combination of gem materials. The 21.58 ct oval measured 20.02 × 15.03 × 9 ...