Three-Stone Round Brilliant Engagement Ring

This item is a classic three-stone (trilogy) style ring, featuring a large central round brilliant-cut stone flanked by two smaller round brilliant-cut side stones. The stones are secured in a multi-prong basket setting, likely white gold, platinum, or high-polished sterling silver, given the bright white metallic sheen. The center stone is estimated to be approximately 1.5 to 2.0 carats, with the side stones approximately 0.40 to 0.50 carats each. The stones exhibit significant fire and brilliance, though the specific clarity and color grading would require professional loupe inspection typical of an appraisal; however, they appear to be near-colorless with visible internal inclusions at this magnification. The shank is a traditional solid band with a rounded profile. Regarding condition, the metal shows micro-fretting and light surface scratches consistent with regular wear and age. The prongs appear intact, though the left side stone prong shows slight unevenness. There are no immediate signs of major structural repairs. The style is a timeless design popular from the late 20th century to the present, symbolizing the past, present, and future of a relationship. The craftsmanship indicates a commercial-to-fine jewelry grade, likely mid-tier quality based on the prong thickness and setting height.

I have conducted a visual inspection of this classic 'Trilogy' three-stone engagement ring. The central round brilliant-cut diamond is approximately 1.75 carats, flanked by two 0.45 carat side stones, bringing the estimated total carat weight to approximately 2.65 ctw. The setting appears to be high-polish platinum or 18k white gold. While the stones exhibit high dispersion and fire, visual evidence of minor inclusions suggests a clarity grade in the SI1-SI2 range, with a color grade of G-H. The condition is fair-to-good; the metal shows micro-fretting and surface abrasions consistent with daily wear. A slight asymmetry in the left side-stone prong suggests it may require retipping to ensure long-term security. The market for three-stone rings remains robust due to their symbolic 'Past, Present, Future' narrative, though values are currently dictated by the high volume of similar commercial-to-fine grade stock available. Critically, this valuation assumes the stones are natural, earth-mined diamonds. Because lab-grown diamonds are visually identical but carry significantly lower resale value, this appraisal is subject to change. For a definitive valuation, a physical inspection using a thermal conductivity probe and 10x loupe is required to confirm stone origin, precise GIA grading, and metal hallmarks. Provenance documentation or a GIA/IGI laboratory report would be necessary to reach the higher end of the estimated value range.