RICH RUBY COLOR – Crafted with a vibrant ruby pink coating fused between two natural quartz layers for deep, luxurious color. FACETED ROUND CUT – Precision-cut facets enhance brilliance and sparkle, ideal for eye-catching jewelry designs. CALIBRATED SIZES – Available in 4mm to 16mm; consistent size and shape make these gemstones perfect for matching sets. NATURAL CLEAR QUARTZ – Ethically sourced quartz gives the gemstones durability, brilliance, and a high-quality, luxurious feel. IDEAL FOR JEWELRY MAKING – Great for rings, pendants, earrings, and other custom fine or fashion jewelry projects. Bring striking color and luxurious brilliance to your custom jewelry creations with this Ruby Color Quartz Doublet Round Faceted Gemstone Lot. Each stone in this calibrated collection is crafted with precision from two layers of natural clear quartz, fused together and enhanced with a vibrant ruby-pink coating to deliver exceptional clarity, depth, and dimension. Available in sizes ranging from 4mm to 16mm, these round faceted gemstones are ideal for use in rings, earrings, pendants, and custom jewelry sets. The expertly cut facets reflect light beautifully, creating eye-catching sparkle and a gem-like appearance that resembles natural ruby—at a fraction of the cost. These doublet stones are perfect for jewelers and designers looking for a luxurious alternative to natural ruby, with the added durability and clarity of quartz. The ruby-colored inner coating adds richness and warmth to your pieces while the quartz layers offer protection and high light transmission, giving your jewelry a dazzling and refined finish.