Experience the exceptional beauty and rarity of natural Umba Sapphire with this luxurious strand of smooth, high-grade rondelles. Sourced from the legendary Umba Valley of Tanzania, these sapphires are celebrated for their extraordinary, completely natural spectrum of color—ranging from rich magentas and deep violets to golden yellows, sea greens, moody blues, and rare smoky tones. Unlike traditional sapphire deposits, Umba produces a unique “rainbow” palette formed by complex trace elements found only in this small geographic region, making each stone visually distinct and highly collectible.
Expertly cut into plump, polished rondelles averaging 9mm in diameter, each bead displays a lush, glassy surface and excellent clarity for the variety, with subtle internal texture that confirms its untouched, untreated origin. The strand has substantial weight and presence, ideal for heirloom-quality necklaces, high-end bracelets, or statement focal work where the gems can be fully appreciated. Umba Sapphire of this caliber—untreated, well-matched in size, and with this level of saturation—is increasingly scarce on the market, making this an exceptional acquisition for designers, collectors, and fine jewelry makers who value both beauty and geological rarity.
