A 19.90 carat multi-gemstone earring combining white topaz, sky blue topaz, amethyst, yellow citrine, and prasiolite in 18K yellow gold over sterling silver - the earring that presents five natural gemstone colors at exceptional combined carat weight. White, sky blue, purple, yellow, and mint-green together create a complete color survey in warm gold. At 19.90 carats combined, these earrings are among the highest-carat pieces in the catalog. Pushback backings.