5.01 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 5.01 carat cushion shape blue sapphire measures 10.37 by 8.50 by 6.09 millimeters, and displays the hallmarks of precision cutting and careful finishing. The faceted execution employs a mixed brilliant cut, combining a modified brilliant crown with a complementary pavilion facet arrangement that optimizes light return while preserving intense color saturation. The stone exhibits intense color intensity with vivid blue tones characteristic of Ceylon sapphires, and the eye level clarity is graded as very very slightly included, indicating minimal internal features that do not interfere with visual performance at normal viewing distances. The excellent polish enhances facet definition and yields crisp facet junctions and strong contrast, while the heat treatment enhancement is consistent with accepted industry practice to improve color uniformity and clarity. From a proportions standpoint the depth of 6.09 millimeters produces a depth ratio of approximately 64.6 percent, a proportion that balances brilliance and face up color, allowing the pavilion angles to return light effectively without sacrificing the rich blue body color that collectors prize.

The mixed brilliant faceting of this cushion allows for versatile mounting options and presents technical advantages for a range of designs. In a solitaire ring the gem benefits from a four or six prong crown mount that secures the slightly rounded corners of the cushion profile while allowing an open pavilion to admit light and maximize scintillation. For clients who prefer a halo, the cushion outline integrates naturally with both round melee halos and cushion shaped halos, and a carefully specified halo diameter will enhance perceived size and increase apparent brilliance without overpowering the central stone. Bezel settings provide a secure, low profile option for daily wear, and the thickness of the bezel can be tuned to protect corners while maintaining table visibility. For pendants and earrings the orientation may be set either vertical or east west to complement the wearer style, and an open back mounting will allow the intense Ceylon hue to read fully against skin. Three stone and cathedral styles benefit from matching accent stone choices, and selecting melee diamonds with tight color and cut consistency will preserve the sapphire color and avoid visual competition. The stone is also a strong candidate for custom vintage or filigree work because the cushion silhouette reads well within ornate gallery work, and the facet pattern interacts beautifully with hand engraved surfaces.

Design decisions regarding metal choice, setting height, and protective details will directly influence the visual outcome, and The Natural Sapphire Company offers bespoke design consultation to align technical considerations with aesthetic goals. Choosing platinum or white gold will emphasize the cool, cornflower character of the blue, while yellow or rose gold will add warmth and can visually intensify the richness of the color. For active wear designs a bezel or partial bezel with a raised protective gallery is recommended, and for showing maximum fire and brilliance an elevated prong setting with open back is advisable. The mixed brilliant cut responds well to properly placed accent stones, and custom designers should consider prong placement at the cushion corners to avoid stress concentrations that could occur with thin girdles or shallow pavilion facets. If a client desires different proportions, professional recutting is feasible, though recutting will change carat weight and should only be undertaken after careful consultation with a lapidary to preserve color and optimize facet geometry. The Natural Sapphire Company can supply CAD renders, wax models, and photography of prototype mounts to evaluate how the stone will sit in the chosen design, and our team provides technical guidance on prong count, head height, gallery structure, and recommended maintenance for long term wear. For buyers seeking a statement center, an heirloom piece, or a daily wear engagement design, this 5.01 carat Ceylon cushion sapphire offers a balance of optical performance, durability, and customization flexibility, and we invite you to contact The Natural Sapphire Company for a tailored design proposal and to discuss metal options, setting types, and technical specifications that will protect and showcase this exceptional stone.