1.70 Ct. Ruby from Thailand

This transparent 1.70 carat oval red ruby presents precise proportions and refined cutting, with dimensions 8.25 x 6.25 x 3.50 mm, a length to width ratio of 1.32, and a depth of 3.50 mm yielding a depth percentage approximately 48.3 percent. The mixed brilliant cut combines a brilliant style crown with a faceted pavilion optimized for light return, producing balanced scintillation and strong table brilliance while preserving color saturation. The cutting geometry is engineered to maximize face up red, with crown facet angles tuned to return warm red tones and pavilion facets arranged to limit leakage and enhance contrast. Clarity is graded very very slightly included, evaluated at eye level, which indicates exceptional visual transparency with only minute internal features not apparent without magnification, allowing the vivid color intensity to read clean and lively in hand. Polish is excellent, resulting in crisp facet junctions and minimal surface disturbance, which further contributes to lively luster and precise light performance.

This ruby is heat treated, a stable and widely accepted enhancement that improves both color saturation and internal clarity, and it originates from Thailand, a historic source with a strong heritage in producing durable, richly colored corundum for fine jewelry. As corundum, this ruby benefits from inherent hardness and wearability suitable for daily jewelry, and its optical and physical characteristics make it an ideal center stone for a fine ring or pendant. Historically rubies from this region have been used in royal regalia, temple offerings, protective talismans, and heirloom settings, valued for their symbolic association with power, protection, and vitality. The combination of a vivid face up color, mixed brilliant cutting to maximize optical return, and a high polish aligns this stone with traditional uses where durability and visible presence were paramount. The Natural Ruby Company provides full disclosure of origin and treatment, and we recommend setting strategies that emphasize the table area and crown facets to showcase the vivid hue, for example open prong settings that allow light through the pavilion while protecting the girdle. This ruby offers a balance of classical provenance, technical craftsmanship, and practical durability, suitable for collectors and connoisseurs seeking a statement corundum with authentic regional heritage.