23.01ct Unheated Ceylon Sapphire Diamond Ring

Carat Weight: 23.01 ct. SapphireColor/Clarity: Ceylon No Heat Sapphire, 202 Diamonds = 5.50cts E-G VS (2 GIA)Certifications: Gubelin and GIASize: 6Creator: Spectra Fine JewelryMetal: 18K White GoldWeight: 17.76 gr.Period: 2026Condition: New/Excellent Designed and handcrafted by Spectra Fine Jewelry, this extraordinary high-jewelry ring is centered on an exceptional 23.01-carat cushion-shaped sapphire of Ceylon provenance. Accompanied by documentation from the Gubelin Gem Lab, the sapphire has earned an impressive Gemstone Rating of 91.2 Points ("Outstanding") and is further distinguished by a rare Gubelin Appendix recognizing its exceptional quality and rarity. The report confirms the absence of thermal treatment, preserving the richly saturated blue color bestowed entirely by nature. Displaying remarkable scale and presence, the sapphire is fashioned with a sophisticated combination of brilliant and step-cut faceting that enhances both its depth of color and brilliance. Platinum double-claw prongs secure the gemstone within an architectural cluster mounting, framed by two prominent GIA-certified step-cut baguette diamonds at the shoulders and accented by alternating pairs of marquise and round brilliant-cut diamonds. The side profile reveals an intricately crafted openwork undergallery pave-set with brilliant-cut diamonds, allowing light to enter the gemstone from multiple angles while showcasing the exceptional craftsmanship of the mounting. This elegant basket transitions into a split three-row pave-set shank that provides both visual balance and comfortable wear. Accompanied by its comprehensive international gemological portfolio, this one-of-a-kind Spectra Fine Jewelry creation represents an important acquisition for collectors of exceptional untreated sapphires. Ref.:R1819