A 2.38 carat oval green peridot with 0.26 carats of round white zircon in 18K yellow gold over sterling silver pendant on an 18-inch Singapore chain with 2-inch extender and lobster claw clasp - the peridot pendant in warm gold where the vivid olive-to-vivid green of peridot creates a fresh, natural-feeling composition. Peridot is one of the few gemstones that occurs in only one color - its distinctive green results from the presence of iron and cannot be produced in any other color. White zircon accents. Singapore chain.