0.29 Ct. Bi Color Sapphire from Montana

This transparent bi color sapphire weighs 0.29 carat and presents a round shape with dimensions of 4.03 by 4.04 by 2.67 mm, supplied by The Natural Sapphire Company. The stone is cut in a mixed brilliant cut and finished with an excellent polish that enhances light return and faceting symmetry. Clarity is graded as very slightly included when evaluated at eye level, providing a clean appearance to the naked eye while retaining natural character under magnification. Color intensity is described as medium light, and the bi color nature produces a subtle and attractive shift between cooler and warmer tones across the crown and pavilion. The sapphire has been heat treated, a stable and commonly accepted enhancement that improves color uniformity and clarity without compromising structural integrity. Origin is Montana, which contributes to the stone’s distinct character and provenance.

This sapphire is well suited to daily wear due to the inherent durability of corundum, which rates nine on the Mohs hardness scale, making it highly resistant to scratches from common materials and daily activities. The combination of excellent polish and a robust mixed brilliant cut also contributes to durability by minimizing exposed cleavage planes and optimizing facet junctions. Heat treatment performed for this gem is stable under normal wear conditions and does not adversely affect its resistance to abrasion or impact when properly set. For the best long term performance, settings that provide some protective bezel or prong security are recommended for ring applications, while earrings and pendants are naturally lower risk placements. Overall, this 0.29 carat Montana bi color sapphire is a technically sound choice for everyday jewelry, offering a balance of aesthetic appeal and practical resilience suitable for frequent wear.