Natural Cobalt Blue Spinel 1.35ct Oval Cut Ceylon – Untreated

Discover an exceptional 1.35-carat natural cobalt blue spinel from Ceylon, displaying a saturated ocean-blue color with bright electric-blue reflections. Its elegant oval cut, eye-clean appearance and untreated condition make it a distinctive loose gemstone for bespoke jewelry, fine jewelry and serious gemstone collections. Natural Cobalt Blue Spinel from Ceylon This earth-sourced gemstone was mined in Ceylon, Sri Lanka, and carefully cut and polished into a classic oval shape. Its vivid blue appearance can shift between deep cobalt blue and brighter cyan-blue flashes as the gemstone moves through different lighting conditions. The cobalt characteristic has been confirmed. Supporting documentation should always be reviewed using the laboratory’s exact terminology. This natural spinel has received no treatment, allowing its color and internal character to remain as formed within the earth. Gemstone Details Gemstone: Natural cobalt blue spinel Weight: 1.35 carats Origin: Ceylon, Sri Lanka Dimensions: 7.80 × 6.44 × 4.27 mm Shape and cut: Oval faceted cut Color: Saturated cobalt blue Clarity: Eye clean Treatment: None Type: Loose, earth-sourced natural gemstone What Can You Create With This Cobalt Blue Spinel? The 7.80 × 6.44 mm oval proportions make this gemstone an attractive center stone for a bespoke engagement ring, promise ring, anniversary ring or contemporary cocktail ring. A classic four-prong setting would keep the blue color visible, while a protective bezel could create a clean modern profile. For additional contrast, consider surrounding the spinel with natural diamonds or pairing it with tapered baguette side stones. White gold or platinum will complement its cool electric-blue reflections, while yellow or rose gold will provide a warmer, more dramatic contrast. The gemstone could also become an elegant oval pendant, an heirloom necklace or a collector-focused fine-jewelry piece. Jewelry makers and designers are welcome to contact us for additional measurements, daylight videos and setting guidance. A Rare Colored Gemstone for Collectors and Jewelry Lovers Natural blue spinel is valued for its distinctive color, brilliance and individuality. Cobalt-associated blue material occupies a special position among rare gemstones, particularly when its color cause is supported by suitable gemological testing. This loose gemstone is suited to collectors and clients who appreciate untreated spinel, Ceylon gemstones, faceted gemstones, precious stones and one-of-a-kind colored gemstones for bespoke jewelry designs. Authenticity and Laboratory Testing The gemstone includes Sapphire Pal authenticity confirmation. A GSL Australia laboratory test report can also be arranged upon request. Please contact us before purchasing if you require specific cobalt wording, origin documentation or additional laboratory services. Why Choose Sapphire Pal? Sapphire Pal is an Australian-based natural gemstone merchant with direct sourcing connections, established in 2014 and supported by more than 60 years of family heritage in the gemstone trade. We source natural gemstones through trusted dealers, cutters and direct mining connections in Ceylon, Australia, Madagascar and other recognized gemstone-producing regions. Our wider collection includes natural spinel, Ceylon sapphires, Australian sapphires, Madagascan sapphires, untreated sapphires and other earth-sourced colored gemstones. Your gemstone will be carefully packed and dispatched from Australia with free, fast, tracked and insured worldwide shipping. Helpful Gemstone Resources Natural Sapphire and Colored Gemstone Buying Guide First-Time Gemstone Buyer Guide About Sapphire Pal and Our Gemstone Heritage Gemstone Education Center Contact Sapphire Pal for Videos and Jewelry Advice Important Natural Gemstone Notice Note: Color may vary slightly across screens, cameras, lighting conditions and viewing environments. Blue spinel can appear deeper or brighter depending on the light source. Dimensions and weight are measured carefully; minor variations are normal. Natural inclusions, growth features and subtle internal characteristics may be present and are part of the gemstone’s natural identity.