Discover the captivating allure of this exceptional 5.54-carat natural blue spinel from Tanzania. Cut in a refined cushion shape measuring 10.9 x 8.9 x 6.0 mm, this gemstone showcases a mesmerizing cobalt blue hue with eye-clean clarity. Completely untreated, this faceted spinel represents the pinnacle of natural gemstone beauty, ideal for the discerning collector or bespoke jewelry creation. Each stone carries its own unique character, making it a truly distinctive addition to any fine gemstone collection.