1.30 Ct. Bluish Grey Spinel from Ceylon (Sri Lanka)

This transparent 1.30 carat round bluish grey spinel measures 6.49 x 6.49 x 4.41 mm, and arrives as a faceted gem cut in a mixed brilliant style, offering scintillation and depth without losing the stone’s elegant, cool hue. With a clarity grade assessed as very very slightly included at eye level, and an excellent polish, this spinel presents eye-clean appearance and lively light return that few stones in this size range achieve. The medium color intensity creates a refined bluish grey that changes gently with lighting, never appearing flat or murky, and because this gem is untreated, with no enhancement, it retains full natural character and integrity. Originating from Ceylon, Sri Lanka, this spinel carries the provenance collectors and designers respect, and its dimensions make it an ideal fit for standard round settings while the 4.41 mm depth balances durability with strong face-up presence.

Compared to other gemstones commonly used as center stones, this spinel offers several advantages in quality and value. Against sapphires of similar tone, this Ceylon spinel is notably free of heat treatment or dyeing, so you receive a naturally occurring color without alteration, and at a price point that typically delivers better value per visual millimeter. When contrasted with diamonds, this spinel provides a striking, colored alternative that commands visual interest at a lower cost, making it an excellent choice for clients who want standout beauty without the diamond premium. Within the spinel category itself, this example’s combination of mixed brilliant cutting, excellent polish, and a clarity described as very very slightly included sets it above many commercial spinels that can be heavily included, poorly polished, or heat-treated. The medium color intensity is versatile, avoiding the muddy look of overly dark stones, and the bluish grey tone pairs favorably with a wide range of metals and accent stones.

The 6.49 mm round shape and mixed brilliant cut make this stone extraordinarily adaptable for custom jewelry, and The Natural Gemstone Company can help translate its virtues into a variety of settings. For a classic engagement or statement ring, a four-prong or six-prong solitaire will showcase the stone’s symmetry and sparkle, while a halo of small diamonds will amplify perceived size and add brilliance without overwhelming the spinel’s cool color. For everyday wear, a low-profile bezel or a partially bezel-set cathedral offers protection against knocks while maintaining the stone’s face-up presence. Contemporary settings such as tension mounts, east-west orientations, and openwork split-shank designs emphasize the gem’s modern, slightly smoky blue tone, making it suitable for both masculine and feminine aesthetics. As a pendant, the gem’s 1.30 carat weight will sit elegantly on a simple bezel or a diamond-accented halo, creating a focal point that moves beautifully with the wearer.

Designers will appreciate how the mixed brilliant cut interacts with different metal choices and accent stones. In white metals, platinum or white gold will enhance the stone’s silvery-blue nuances and give a sleek, modern look, while yellow gold will warm and subtly shift the bluish grey toward a more vintage character, and rose gold will create a fashion-forward contrast that emphasizes romantic, muted tones. Pairing the spinel with melee diamonds will increase fire and luxury, whereas pairing with accent sapphires or small rubies can create color-contrast designs that feel bespoke and intentional. For clients seeking a textured or vintage feel, a milgrain bezel or engraved shoulders will frame the spinel without masking its light performance. The stone’s dimensions correspond closely to standard 6.5 mm round settings, which simplifies setting fabrication and keeps custom design costs reasonable, while the 4.41 mm depth is well suited to prong or bezel settings that balance security and light return.

At The Natural Gemstone Company, we specialize in translating exceptional individual gems like this Ceylon spinel into finished pieces that outperform mass-market jewelry in both uniqueness and long-term value. Because this spinel is natural and untreated, we recommend discussing optional independent gemological reports if you prefer formal documentation for insurance or resale, and we can coordinate grading certificates on request. Our bespoke services include CAD renderings to preview settings, metal and accent stone sourcing to fit your design intent, and professional mounting with attention to prong integrity and bezel thickness for daily durability. Whether you envision this bluish grey round spinel as the heart of an engagement ring, a refined pendant, a pair of custom earrings when matched with a complementary stone, or a signature cocktail ring, we can propose specific settings that enhance its mixed brilliant faceting, medium color intensity, and eye-level clarity. Contact The Natural Gemstone Company to explore design options, request additional photos or video under multiple lighting conditions, and begin a custom project that positions this exceptional spinel as the centerpiece of truly distinctive jewelry.