Three Stone Cobalt Spinel Ring 2.20 Ct., 18K Yellow Gold

This ring presents a study in timeless proportion and refined color, centered on a transparent 2.20 carat cushion shape cobalt spinel that measures 8.52 by 7.05 by 4.21 millimeters, with a mixed brilliant cut that combines the soft silhouette of a cushion outline with faceting that maximizes scintillation. The cobalt spinel shows vivid color saturation and an excellent polish, and it has a clarity grade of slightly included evaluated at eye level. This gem is natural and untreated, with no enhancement, and its origin is Vietnam, a locality that is increasingly recognized for producing cobalt spinel of intense, stable blue that can rival other blue gemstones in both depth and clarity. For the discerning buyer who values geological provenance and gemological integrity, this stone offers the rare combination of saturated hue, transparent body color, and strong cutting quality that allows light to return with a lively, velvety brilliance. Slight inclusions at eye level are consistent with natural spinel formation, and they do not detract from the gem long term, rather they serve as an indication of natural origin and character that many collectors and connoisseurs prize.

Flanking the cobalt spinel are two white half moon shaped natural diamonds, weighing approximately 0.50 carats in total, with clarity grades in the Very Slightly Included range, specifically VS1 and VS2, and an E color grade. These side diamonds are carefully matched for hue and clarity, and their half moon shape echoes classical three stone ring proportions while offering a contemporary silhouette against the cushion center. An E color grade indicates exceptional whiteness, creating a crisp, high contrast frame for the deep blue of the cobalt spinel, and the VS clarity grades ensure minimal inclusions that are unlikely to be visible to the unaided eye. The diamonds have been cut and finished to complement the mixed brilliant cut of the center stone, providing complementary flash and dispersion that enhance perceived size and presence. To an educated buyer, the precise selection of E color and VS clarity diamonds speaks to an investment in optical harmony, where each gemstone is chosen to support the other, resulting in a ring whose overall brightness and balance exceed the sum of its parts.

The mounting is executed in 18K yellow gold, a metal choice that reinforces the ring's timeless quality while offering enduring value and wearability. Yellow gold was selected to warm the interaction between the deep cobalt blue and the icy white of the half moons, producing a classical color story that reads as luxurious without being overly ornate. The design employs a well proportioned prong setting for the cushion spinel, allowing maximum light entry to the pavilion while securing the gem with minimal metal intrusion. The half moon diamonds are set to sit flush against the shoulders of the center stone, creating a seamless visual transition from center to side stones and preserving the ribbon like line of the band. The gallery and underbezel work display considered engineering, elevating the stone for light intake and adding structural integrity for daily wear. Finishing is attentive, with polished surfaces that reflect light and subtle chamfering at stress points to minimize wear, making this ring an object that will endure both in style and in structure.

Presented by The Natural Gemstone Company, this ring is crafted for the buyer who values both aesthetic permanence and gemological substance. The untreated nature of the Vietnamese cobalt spinel, combined with the precise selection of E color, VS clarity half moon diamonds, and the 18K yellow gold mounting, communicates a measured approach to luxury that privileges provenance, cutting quality, and long term value. For collectors and individuals seeking an engagement or heirloom ring that bridges classical design and contemporary gem interest, this piece represents a confident choice. Care recommendations include routine professional inspection of prongs and periodic cleaning with mild soap and warm water to preserve brilliance, and The Natural Gemstone Company can provide guidance on insurance appraisal, resizing, and documentation of origin and grading to support long term ownership. This design will remain relevant across decades, owing to its balanced proportions, enduring materials, and a center gem whose color and transparency make a quiet yet unmistakable statement of sophistication.