Product Description ¯¯¯¯¯¯¯¯¯¯ Natural Yellow Topaz Stud Earrings ・Length: 5mm ・Width: 5mm These are easy-to-wear 5mm stud earrings featuring beautiful amber-colored natural yellow topaz. Costume jewelry is a general term for "imitation" jewelry and accessories made without using expensive gemstones or precious metals like gold or platinum, but instead using artificial gemstones such as glass and plastic, and alloys.