0.75 Ct. Blue Sapphire from Thailand

This 0.75 carat oval blue sapphire presents a balanced combination of size and optical performance, making it an excellent candidate for custom jewelry. The stone measures 5.83 x 4.70 x 2.92 mm, dimensions that are ideal for a center stone in delicate to medium scale rings, refined pendants, and elegant earrings. Cut as an oval, the outline provides a visually larger face up area relative to round stones of equivalent weight, while the elongated profile suits both traditional and contemporary design proportions. The mixed brilliant cut on this sapphire integrates a brilliant style crown with a modified or step style pavilion, a faceting strategy intentionally chosen to maximize both scintillation and color saturation. The cutter has prioritized a measured crown and pavilion relationship to preserve weight and maintain a lively return of light, resulting in an excellent polish that contributes to crisp facet junctions and bright reflections.

Optically the sapphire is transparent with an included clarity grade as evaluated at eye level, inclusions that are natural to corundum and that do not compromise structural integrity when properly set. The medium color intensity gives the stone a stable blue that reads as classic sapphire blue under standard viewing conditions, with enough saturation to hold presence without veering toward overly dark tones. Heat treatment has been applied, a routine and accepted enhancement that improves hue uniformity and increases visible clarity, and origin in Thailand is consistent with material that frequently exhibits strong cut potential and reliable color. The mixed brilliant faceting, combined with excellent polish, is particularly effective at distributing color and light, so that the medium intensity appears evenly across the table and along the length of the oval, reducing the risk of windowing or localized dark zones when mounted.

For custom jewelry applications this sapphire is exceptionally versatile. Its 5.83 x 4.70 mm oval footprint is proportionally suited to a solitaire ring with four or six prongs, a delicate halo engagement setting that enhances perceived size, an east west mounting for a contemporary aesthetic, or a bezel that affords extra protection for active wearers. The included clarity suggests design choices that either showcase the stone openly in prong settings to emphasize brilliance, or opt for partial bezels and protective galleries that shield vulnerable girdle areas without sacrificing face up color. Metal selection will influence perceived color, with cool white metals accentuating brightness and warm yellow and rose metals deepening the blue through contrast. When specifying custom work at The Natural Sapphire Company our bench will take into account pavilion depth and crown angles to set girdle position and prong placement so inclusions are stabilized and light performance is optimized. We welcome technical discussions about mounting strategies, matching companion stones, and exacting tolerances for seat cuts, and we can provide measured sketches and mockups to ensure your finished piece leverages this sapphire s size, shape, and cutting characteristics to their fullest advantage.