This necklace is laser engraved with the Sagittarius (November 22 - December 21) zodiac constellation. Other black stones like onyx, opal or pearl will chip or break under a laser, making detailed engraving extremely difficult. Most people think of white gemstones when they think of diamonds. Meraxi Noir brings to the market the world's first authentic diamond jewelry options rendered in black.
Additional size reference: U.S. quarter = 24.26mm; U.S. nickel = 21.21mm; U.S. dime = 17.91mm