1.15 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

This description concerns a single transparent 1.15 carat oval bi color parti sapphire, with precise dimensions of 7.11 by 5.83 by 3.70 mm, faceted in a mixed brilliant cut, and finished with an excellent polish. The stone displays medium color intensity and a distinctive bi color distribution that presents a balance of violet and bluish purple tones when viewed from different angles. Clarity is graded as very slightly included when evaluated at eye level, a condition which preserves the gem clarity to unaided observation while retaining natural internal characteristics under magnification. The sapphire is untreated, enhancement free, and sourced from Ceylon, Sri Lanka, a provenance that is respected for historical production of fine quality sapphires. The Natural Sapphire Company provides this gem with detailed imaging and documentation, allowing careful assessment of the cut, proportions, and apparent color zoning prior to acquisition.

From an investment perspective this sapphire exhibits several attributes that support potential long term appreciation, while also reflecting the market realities for colored gemstones. Parti or bi color sapphires are less common than single hue stones, and when combined with an untreated origin from Sri Lanka, they occupy a niche that appeals to collectors and connoisseurs seeking rarity as well as aesthetic uniqueness. At 1.15 carats the gem is in a size range that is both wearable and collectible, which tends to aid liquidity relative to very large or very small stones. The mixed brilliant cut enhances light return, which contributes positively to visual appeal and marketability, while the very slightly included clarity grade maintains transparency that collectors prefer. These objective attributes position the stone as a collectible colored gemstone rather than a mass market item.

Market value and future appreciation depend on several measurable factors, including supply conditions at origin, changing consumer preferences, and the availability of comparable untreated material. Ceylon sapphires have historically been sought after for their range of color and clarity, and untreated stones with good polish and fine cutting command premiums in markets that value natural and ethically sourced gems. Supply constraints can arise from depletion of specific deposits, regulatory changes, and increased costs of responsible mining, each of which can restrict availability and support price increases for well documented pieces. Demand dynamics are influenced by fashion, collector interest, and the growing emphasis on traceability, and stones accompanied by clear provenance and third party verification generally achieve better resale outcomes. It is important to note that colored gemstone markets are less standardized than some precious metal markets, and prices can vary by region, auction venue, and buyer profile.

Practical considerations for investors include documentation, condition, and resale strategy. Obtain or retain a comprehensive report that records weight, dimensions, cut description, clarity grade, color intensity, treatment status, and origin, and store the documentation with the gem. Maintain the stone in an appropriately secure and stable environment to avoid physical damage or surface abrasion, and insure the asset under a policy that covers both loss and damage. When measuring potential liquidity, consider reputable dealers and auction houses that specialize in colored gemstones, and seek price references for comparable untreated Ceylon parti sapphires. The Natural Sapphire Company can provide provenance information, professional imaging, and guidance on certification, which supports transparent valuation and market access. While no investment is free of risk, this particular 1.15 carat untreated Ceylon bi color sapphire has objective qualities that align with collector demand for rarity, natural condition, and attractive cutting, attributes that can contribute to long term appreciation when combined with careful documentation and stewardship.