Clutch backs work across stud, drop, and dangle earring formats, which is why they're the standard closure for post-style earrings across fine and fashion jewelry. They're compact, universally compatible, and easy to replace.
A Storied Heritage
Cultured pearl classification as a precious gemstone dates back more than a century in the fine jewelry industry. The question was contested early in cultured pearl production's history and resolved in favor of classification.
Stone Story
CZ is available colorless to simulate diamond and in virtually any color (including blue, pink, green, red, and yellow) to simulate other gemstones. Because color is introduced during synthesis, each stone can be produced to a consistent, repeatable standard.