1.39 Ct. Color Change Sapphire from Tanzania

This transparent 1.39 carat oval color change sapphire measures 7.43 x 5.43 x 3.87 mm, and it has been expertly cut into a mixed brilliant shape to balance table size and pavilion depth for optimal light return. Graded eye clean at standard viewing distance, this stone displays vivid color intensity and an excellent polish, with no enhancement reported. Originating from Tanzania, this sapphire is part of a well documented supply region known for producing strong color and notable color change material, and the combination of a clean clarity grade and vivid saturation makes it particularly attractive to the educated buyer who values natural, untreated gemstones. The color change phenomenon adds rarity and appeal, as the sapphire can shift between cooler bluish violet tones under fluorescent lighting and warmer purplish red notes under incandescent light, demonstrating stable pleochroic behavior and a depth of hue that performs well in both modern and classic settings. The Natural Sapphire Company stands behind the gemological description and provenance of this sapphire, and we present it as an investment grade natural color change sapphire with marketable attributes that experienced collectors and connoisseurs recognize.

From a durability perspective this sapphire is an excellent choice for daily wear, because corundum ranks nine on the Mohs hardness scale, second only to diamond in practical toughness and abrasion resistance among transparent gem materials. The clean clarity at eye level reduces the risk of structural weakness, while the mixed brilliant cut is designed to protect facet junctions and edges when set into secure mountings, making it suitable for rings, pendants, and everyday earrings. For optimal longevity we recommend settings that protect the girdle and corners, such as bezel or secure prong designs, and routine care involving warm soapy water and a soft brush for cleaning, avoiding harsh chemicals and extreme thermal shock. The untreated nature of this Tanzanian color change sapphire enhances its long term value, because there is no diffusion or heat enhancement to consider, and the excellent polish contributes to its resistance to surface wear. As presented by The Natural Sapphire Company this stone is a compelling option for buyers seeking a durable, collectible, and visually striking color change sapphire that combines gemological integrity with practical suitability for continuous wear.