Three Stone Emerald Ring 5.07 Ct., 18K Yellow & White

This ring is centered by a transparent C Dunaigre certified 5.07 carat Asscher octagon shape green emerald, with precise dimensions of 10.59 x 10.14 x 7.76 mm, an Asscher cut that emphasizes step faceting and symmetry. The Asscher cut in this weight class presents broad step facets on the crown and pavilion, a high crown and a relatively large open table that deliver a combination of depth and clarity, allowing the eye to evaluate internal features and color distribution. The clarity grade is recorded as very slightly included evaluated at eye level, indicating that inclusions are minimal in impact to the visual performance, and the excellent polish accentuates facet junctions and promotes crisp light return across the step facets. The origin of the emerald is Colombia, a provenance that corresponds with classic, highly desirable green saturation, and the stone exhibits intense color saturation which is evenly distributed across the table and through the pavilion, producing the deep verdant tone prized by connoisseurs.

Flanking the emerald are natural white half moon shaped diamonds with a combined weight of approximately 0.80 carat, graded Very Slightly Included in clarity, specifically VS1 and VS2, and color grade F, offering a cool near colorless contrast to the vivid emerald. The half moon shape is a modified brilliant proportion designed to pair with a square center, featuring curved outer girdles and tapered inner bezels that nestle against the Asscher corners, creating a seamless transition from the square geometry to the rounded band line. These side stones are cut to optimize brilliance in smaller carat weights, with faceting schemes that emphasize light performance at the crown while controlling depth to preserve overall setting profile. The F color grade for the diamonds ensures a bright white appearance against the white gold mounting, while the VS clarity range guarantees that inclusions are minute and typically not visible to the unaided eye, thereby enhancing perceived brightness and contrast around the center stone.

The mounting is executed entirely in 18 karat yellow gold and 18 karat white gold, a deliberate combination that balances aesthetic contrast with structural durability for long term wear. The emerald is seated in a yellow gold basket with robust prong shoulders that protect the vulnerable truncated corners inherent to the Asscher octagon form, the yellow gold offering a slightly warmer metal interface that complements the green saturation. The band and diamond settings are fashioned in 18 karat white gold, providing a high white backdrop that accentuates the F color grade of the side diamonds. From a metallurgical perspective, 18 karat alloys retain a high gold content to secure color and corrosion resistance, while the specific alloying elements selected for both the yellow and white gold components are chosen to improve tensile strength and surface hardness for daily wear. The construction includes a reinforced gallery and a solid shank profile, with proportions engineered to distribute stress away from the prongs and shoulders, and precision soldering and hand finishing techniques ensure that junctions maintain integrity over time. Where a bright white appearance is required, a rhodium finish may be applied to the white gold surfaces to enhance abrasion resistance and to maintain color stability, while the yellow gold components receive a meticulous polish that resists micro abrasion when properly maintained.

The craftsmanship demonstrated in this ring reflects The Natural Emerald Company standard for technical execution, with attention to facet alignment, prong geometry, and setting tolerances that preserve both optical performance and structural longevity. The gallery design allows for controlled light ingress to the pavilion facets of the emerald, while also permitting straightforward maintenance access for routine inspections of prong security and stone position. For long term wear, recommended service intervals include professional cleaning to restore polish and luster, and annual checks of prong tension and soldered joints to detect and correct any early signs of mechanical wear, which when performed keeps the 18 karat structures functioning as intended for decades. This piece combines a collector quality Colombian Asscher cut emerald, certified transparency and polish, matched half moon diamonds of high color and clarity, and a dual metal construction that has been engineered to maximize both visual performance and everyday durability, making it a technically refined choice for the discriminating buyer.