natural unheated/untreated sapphire specimen 4 pieces, 167 grams

Uncover the mesmerizing beauty of four natural, unheated, and untreated sapphire specimens from Tanzania’s Umba River Valley, together weighing 167 grams, now available at NaturalRawks.com for only $1 per gram—a total of $167. Collectively totaling approximately 5.9 ounces, these striking gems capture the pure essence of a world-famous gemstone region, each piece revealing a vivid array of colors—from rich twilight blues to glowing amber shades and gentle pastel pinks. Sourced straight from the Mwarabu Mine with no treatments, these sapphires highlight nature’s unrefined artistry, making them an ideal choice for collectors, creators, or anyone captivated by genuine geological wonders. This Umba Valley set provides an affordable opportunity to own a curated selection of Tanzania’s mineral heritage, perfect for igniting creativity or crafting unique, bespoke designs.