Product Description ¯¯¯¯¯¯¯¯¯¯ Yellow & White Diamond CZ Square Earrings ・Length: 7mm ・Width: 7mm These very stylish earrings feature a beautiful yellow sapphire with a luxurious white zircon border. Costume jewelry is a general term for "imitation" jewelry and accessories made without expensive gemstones or precious metals like gold and platinum, but instead using artificial gems such as glass and plastic, and alloys.