5.57 Ct. Bi Color Tourmaline from Ceylon (Sri Lanka)

This is a transparent 5.57 carat oval bi color tourmaline from Ceylon Sri Lanka, with dimensions of 13.31 by 10.58 by 6.34 millimeters, a mixed brilliant cut, and an excellent polish. The gem displays medium color intensity with a pleasing distribution of warm pink and soft champagne tones that shift subtly with viewing angle, a characteristic that helps define its bi color identity. The cutting style combines brilliant pavilion faceting with a more restrained crown table, a choice that enhances both internal fire and face up color, while preserving weight and maximizing the gem for wearable jewelry. This tourmaline has been evaluated as included at eye level, it is unenhanced, and it retains natural clarity and character, attributes that collectors and informed buyers often prefer. The origin of Sri Lanka contributes provenance value, as Ceylon tourmalines are known for clear, attractive pastel hues and a long tradition of skilled lapidary work, and at The Natural Gemstone Company we document origin and treatment status to support confidence in every purchase.

Clarity described as included at eye level means that under normal viewing conditions there are visible internal features, yet these do not overwhelm the stone or obscure its color and brilliance. In tourmaline, needle like and liquid inclusions are common and can enhance interest without substantially diminishing durability, and the mixed brilliant cut on this oval shape was selected to position facets so that light return minimizes apparent inclusion contrast. The excellent polish is important in a stone of this size, because it allows facet junctions to remain crisp and maintains maximum luster, which helps the medium intensity colors sing when mounted. Because this gem is unenhanced, the colors are entirely natural, a quality that resonates with buyers who value untreated material, and provenance from Ceylon adds a geological and historical narrative that can be emphasized in bespoke pieces. All of these technical details, weight, dimensions, cut, clarity grade, polish, lack of enhancement, and origin, are factors that influence market value and collector desirability, and they are disclosed clearly in our cataloging process at The Natural Gemstone Company.

This oval bi color tourmaline adapts beautifully to a wide range of custom jewelry settings, and its size makes it an excellent focal stone for rings, pendants, and statement earrings. For ring applications, classic four and six prong solitaire heads present the color with minimal metal interruption, while a low profile bezel offers added protection for a lifestyle ring with daily wear. An east west orientation can modernize the look and lengthen the hand visually, while a vertical setting emphasizes the oval outline in a pendant application. Halo settings with melee diamonds or colored accent stones will intensify the central pink tone, creating a bright optical contrast that is particularly striking in white metal such as platinum or white gold, whereas yellow or rose gold will warm the overall palette and harmonize with the champagne side of the bi color. Three stone or bypass designs allow the side stones to counterpoint the color transition, and custom pavé shoulders or open gallery work can be designed to maximize light entry into the pavilion, enhancing scintillation. For earrings, matched pairs are ideal, but a single drop pendant or asymmetric design highlights the individuality of a single stone, and artisan bezel or vintage inspired settings with milgrain detail will suit buyers seeking classical character.

When planning a custom setting, practical considerations matter, and we advise on several technical points to ensure longevity and beauty. The oval shape and the dimensions of 13.31 by 10.58 millimeters recommend a setting that secures the stone across the girdle with proportionate prong size or a snug bezel rim, because this limits stress to the girdle during daily wear. For a brilliant face up appearance, maintain a crown height that balances protection and light return, and orient the stone so that the dominant color face up is presented in the chosen mount. Metal choices influence appearance and value, platinum and high karat yellow gold add prestige and durability, while rose gold complements pink tones and offers a vintage warmth that many clients prefer. Accent selections can range from high clarity diamonds for brilliance and market familiar appeal, to colored sapphires or tsavorites for bespoke color stories, and we provide CAD renderings, metal samples, and mockups, so clients can visualize prong counts, gallery design, and band profiles before production.

At The Natural Gemstone Company we combine gemological rigor with bespoke design services to guide each client from selection to finished piece, and this tourmaline is supplied with transparent documentation of its weight, dimensions, cut type, clarity grade, polish, enhancement status, and country of origin. Natural, unenhanced tourmalines from Sri Lanka are less common than treated material in the market, and the lack of enhancement supports long term value retention for collectors and design forward buyers. For care, clean gently with warm soapy water and a soft brush, avoid sudden temperature changes and aggressive steam or chemical cleaning if the stone shows significant internal features, and store separately to prevent abrasion. If you wish to proceed with a custom setting, our design team will propose metal options, mounting styles, and accent stone combinations tailored to the intended use and aesthetic, and we will provide expected timelines and secure production standards. Please contact The Natural Gemstone Company to explore custom settings and complimentary design consultations, we will be pleased to assist you in creating a finished piece that honors the natural beauty and gemological integrity of this exceptional bi color tourmaline.