Authentic TIFFANY 18K Gold Citrine Sparklers Cocktail Ring 53 6.25. This stylish ring is crafted of 18 karat yellow gold featuring a cushion cut orange citrine. This is a stylish ring for an unforgettable look only from Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.