GRS Cert. 4.37 Carat Vivid Green Muzo Colombian Emerald Diamond 3 Stone Ring

GRS-certified 4.37 carat octagonal step-cut natural Colombian emerald ring features a vivid "Muzo Green" center stone flanked by two GIA Certified trillion-cut diamonds. One is GIA-graded D/VS1 and one F/SI2. All set in an 18K white and yellow gold three-stone mounting. The ring is a size 6.5, adjustable.

Complete with GRS Certification and origin report, with and additional GRS appendix letter explaining the stone's significance. The side stones are GIA Certified as well, so this piece would come with 4 certificate documents.

The setting pairs an 18K yellow gold eight-prong basket mount for the emerald with a clean white gold shank and white gold prong heads for the trillion diamonds, creating a classic two-tone three-stone composition that places all visual emphasis on the gems themselves. The yellow gold prongs beautifully complement the warm, saturated green of the Colombian emerald, while the white gold trilliant mounts allow the diamonds' colorless brilliance to shine without competition. The profile reveals an open gallery that allows light to pass through the emerald from below, maximizing its depth of color.

The 4.37 carat Colombian emerald carries a GRS designation of "Muzo Green" — a color quality traditionally associated with the legendary Muzo mines of Colombia and known in the trade as "Old Mine" emeralds, representing the pinnacle of emerald color saturation globally. At over 10mm across, this stone commands exceptional visual presence on the finger, with a vivid pure green that saturates evenly through the step-cut facets. The minor clarity enhancement noted by GRS (CE: O) is standard and universally accepted for fine Colombian emeralds, and does not diminish the stone's natural origin or collector appeal. Flanking this centerpiece are two GIA-certified trillion diamonds totaling 1.44 carats, providing brilliant white contrast that intensifies the emerald's deep green by juxtaposition.

GRS Appendix Comments: "This vividly saturated emerald of 4.37 ct is reminiscent in hue of the varieties displaying the legendary colors found in the world renowned Muzo mines. They are formally described as “Muzo Green” (*) and commonly known in the trade as “Old Mine” emeralds”