Natural Hauyne – 4.71 ct – Cushion Cut – GRA Certified This auction presents a rare and exceptional Natural Hauyne, certified by GRA Gemological Lab. Hauyne is a highly sought-after collector’s gemstone, admired for its deep, vivid blue color. At 4.71 ct, this is an impressive and uncommon size for this species. Gemstone Details Gemstone: Natural Hauyne Certificate: GRA – Report No. GRA2025-110337 Weight: 4.71 carats Shape: Cushion Cutting Style: Modified Brilliant Measurements: 12.64 × 10.66 × 5.80 mm Color: Blue Enhancements: None indicated Quality Notes Large 4.71 ct size — extremely rare for Hauyne, making it highly collectible. Vibrant, saturated blue color with strong visual impact. Modified brilliant cut for enhanced sparkle and balanced proportions. Ideal for high-end jewelry or gemstones collections focused on rare minerals.