Antique Style Blue Sapphire Ring 6.20 Ct., 18K White & Yellow

This ring centers a transparent AIGS certified Blue sapphire, cushion shaped, weighing 6.20 carats, with dimensions 11.89 by 9.81 by 5.24 millimeters, cut to a mixed brilliant facet scheme that combines a brilliant crown with modified pavilion facets to intensify color and scintillation. The sapphire has a clarity grade of very slightly included when evaluated at eye level, and a dark color saturation with an excellent polish that emphasizes deep blue tone and windowing control. The stone is of Thai origin, and the cutting decisions prioritize color saturation over maximum brilliance, which is typical for richly saturated sapphires, enabling the pavilion facet angles and table sizing to retain depth of color without sacrificing return of light. Surrounding the center, a halo of white round natural diamonds totaling approximately 2.04 carats, graded VS1 and VS2 for clarity and F for color, are set to maximize brightness and contrast, their round brilliant proportions providing strong scintillation against the sapphire. The head and diamond halo are executed in 18 karat white gold to enhance optical contrast, while the shank and shoulders are formed in 18 karat yellow gold, creating a two tone architecture that balances aesthetic contrast with functional strength. The profile shows a raised gallery and an openwork basket beneath the center stone to optimize light return and minimize heat risk during setting, and the core prong work secures the cushion sapphire at the cardinal points with robust claws and a shared prong approach for the halo diamonds.

In terms of durability the piece is engineered to perform strongly for regular wear, because sapphire rates nine on the Mohs hardness scale, substantially harder than most colored gemstones and second only to diamond. Compared to similar halo designs on the market that are cast in 14 karat gold with finer, more delicate prongs, this design uses denser 18 karat construction with reinforced shoulders and a slightly elevated gallery to reduce lateral levering of the central prongs, offering greater structural resilience against knocks and bending. That said 18 karat gold is intrinsically more malleable than 14 karat alloys and will show surface wear more readily over time, and white gold components may require periodic rhodium maintenance to retain their bright white appearance. The shared prong halo provides excellent diamond security while exposing small stones more than a full bezel would, so routine inspection of prong integrity is advised. At The Natural Sapphire Company the combination of a deep saturated Thai cushion sapphire, precision mixed brilliant cutting, secure prong architecture, and dual metal construction yields a halo ring that balances visual impact with practical longevity when compared to common market alternatives.