0.67 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This 0.67 carat yellow sapphire is an emerald cut, transparent gem with precise dimensions of 5.44 by 3.19 by 3.35 millimeters. The stone exhibits a medium color intensity characteristic of Ceylon sapphires, presenting a clear, warm yellow hue without overt saturation. Clarity is graded as eye clean when examined at typical viewing distance, and the polish is assessed as excellent, producing crisp facet reflections across the step cut planes. Importantly, the sapphire is untreated, with no enhancements reported, and its provenance is Ceylon, Sri Lanka, a source noted for producing well balanced yellow and pastel sapphires. These objective attributes make the stone straightforward to evaluate for both aesthetic and technical design purposes.

The emerald cut shape emphasizes color and clarity through broad, parallel step facets that create a hall-of-mirrors effect rather than the scintillation typical of brilliant cuts. For this yellow sapphire, the step cut allows the medium intensity color to read uniformly across the table, offering a refined, architectural appearance. The rectangular proportions and modest depth yield predictable optical performance, with the flat table providing a clear window to the stone’s interior and making the eye-clean clarity an advantage. The cut also produces predictable light return under different orientations, which allows a jeweler to anticipate the visual behavior of the gem in a given setting, whether mounted horizontally in an east-west ring or vertically in a classic solitaire.

This sapphire adapts well to a broad range of jewelry settings, and its dimensions and cut invite multiple design approaches. In rings, it is well suited to minimalist solitaires, bezel mounts that protect the corners, or prong settings with four corner prongs to maintain the clean lines of the emerald cut. An east-west mounting accentuates the stone’s linear geometry for contemporary designs, while a three-stone composition or flanking trapezoid diamonds highlights the clean step facets and can visually increase perceived size. For earrings, matched pairs are ideal but this single gem is a strong candidate for a refined stud or drop earring paired with a contrasting diamond or colored sapphire accent. As a pendant, the rectangular table provides a modern, architectural focal point that works well with both simple bezels and more open gallery settings. The stone also suits channel or bar set arrangements in a bracelet link, where its low profile and durability are beneficial. Designers may incorporate halos of melee diamonds to add brilliance while maintaining the integrity of the yellow hue, or pair the sapphire with complementary gemstones such as warm-toned cognac diamonds, champagne sapphires, or cooler accents like light blue sapphires for contrast.

Practical considerations for customization are straightforward because the stone’s exact dimensions and weight are provided. The 5.44 by 3.19 millimeter table and 3.35 millimeter depth inform bezel thickness, prong placement, and seat design. For daily-wear pieces, a bezel or semi-bezel offers enhanced protection for the corner facets, which can be slightly more exposed on step-cut stones. A four-corner prong setting can preserve the emerald cut’s geometry while offering good security when properly sized. Metal choice will influence the perceived color; warm yellow gold will intensify the stone’s hue, softening the contrast between metal and gem, while white metals such as platinum or white gold will provide a crisp counterpoint that accentuates the stone’s architectural lines. Sapphire’s inherent hardness makes it suitable for rings and other frequently worn items, but standard care recommendations apply, including avoiding harsh chemicals and storing the gem separately to prevent abrasion. The Natural Sapphire Company provides technical support for setting this gem, including bespoke mounting recommendations, CAD renderings, and collaborative design consultations to ensure that proportion, metal weight, and setting style are optimized for both aesthetics and durability.