Natural Rainbow Blue Moonstone – 18.51 ct – Pear Cabochon – ICA GemLab Presented by ParaibaCollective on Catawiki, this impressive 18.51-carat Natural Rainbow Moonstone displays a beautiful rainbow-blue play of color, creating an attractive luminous effect as the stone moves under different lighting. Fashioned as an elegant pear-shaped cabochon, the gemstone exhibits labradorescence, producing flashes of rainbow colors across its near-colorless body. Its substantial size, distinctive optical effect and graceful pear shape make it an attractive collector’s gemstone or centerpiece for a bespoke jewelry creation. Gemstone: Natural Labradorite Variety: Natural Rainbow Moonstone Weight: 18.51 ct Dimensions: 19.06 × 14.45 × 10.60 mm Color: Near-Colorless with Rainbow-Blue Play of Color Shape: Pear Cut: Cabochon Transparency: Transparent Phenomenon: Labradorescence / Rainbow Play of Color Treatment: None Laboratory: ICA GemLab Report No.: TH26G132378 Report Date: 5 October 2026 Accompanied by its ICA GemLab report for identification and specifications.