4.02 Ct. Bluish Green Sapphire from Montana

This oval shaped bluish green sapphire weighs 4.02 carats, and measures 10.47 x 7.68 x 5.59 mm, the cutting style is faceted with a mixed brilliant cut that balances table size and pavilion depth to optimize light return and scintillation. Clarity is eye clean as evaluated at eye level, which is an important marker for discerning buyers because it ensures the stone presents without visible inclusions that can interrupt brilliance. The color intensity is described as intense, a saturated bluish green that displays depth and liveliness across different lighting conditions, and the polish has been graded excellent, indicating crisp facet junctions and smooth planes that enhance the gem optics. This sapphire has been heat treated, a common and stable enhancement in sapphires, and the gem is sourced from Montana, a provenance respected for producing unique green and teal sapphire tones with a distinct regional character.

For the educated buyer, several technical points underscore the value of this example. The mixed brilliant cut offers the best compromise between dispersion and depth, maximizing perceived size while preserving strong light performance. Eye clean clarity at slightly over four carats is a premium combination, because it allows the color to dominate without distraction from inclusions, and the excellent polish means the finished gem will sit as a focal point in any setting without compromise. Heat treatment in this context is a standard, accepted practice that improves color stability and uniformity, and when disclosed transparently it does not detract from long term desirability. Montana origin contributes to rarity and collectible appeal, as regional characteristics and limited production can support value retention for collectors and investors.

At The Natural Sapphire Company we emphasize provenance, accurate grading, and responsible sourcing, and this stone exemplifies those priorities. Its rich, bold bluish green color serves as a symbol of personal power and distinction, offering a confident presence whether set as a solitary center stone or as the heart of a bespoke design. For clients seeking a statement piece that combines technical merit with aesthetic authority, this sapphire delivers a rare blend of size, color intensity, and clarity, and our team can provide guidance on ideal settings, mounting options, and care to preserve the gem for generations.