Blue Sapphire – no Heat, 13.94 ct
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Main reasons to invest
Return potential: An investment of €500 could reach an estimated value of €1,219 in 7 years.
Cost-to-return ratio: After deducting 2.7% in annual total costs, your net return could reach 13.6% per year.
Built-in Value Cushion at Entry 💎: The sapphire was acquired at a 41.8% discount to reference value, creating an immediate margin of safety at entry. This built-in value cushion reduces downside risk while preserving upside potential as market prices for large, untreated Ceylon sapphires continue to be supported by scarcity and collector demand.
Description
| Metric | Value |
|---|---|
| Investment Horizon | From 5 to 7 years |
| Potential net ROI p.a. (Balanced) | 13.6% p.a. |
| Potential net ROI p.a. (Ambitious) | 15.0% p.a. |
| Price Verification (prior fees) | -41.8% |
| Price Verification (after fees) | -30.5% |
| Sharpe Ratio | 0.90 |
| Value at Risk (VaR) | 99% probability to exceed initial investment after 7 years |
| Standard Deviation | 15.4% |
| Track Record (Comparable Sales) | 14 sales points |
- 5–7 year horizon: Targets an exit between 2031 and 2033 to benefit from peak demand cycles and increasing scarcity-driven interest.
- 13.6% net ROI p.a. (balanced): Assumes an 85% probability of achieving the CAGR from 06/2010–06/2023 of 9% (per Doris Hangartner presentation), incorporating the entry discount.
- 15.0% net ROI p.a. (ambitious): Assumes a 100% probability of achieving the CAGR from 06/2010–06/2023 of 9% (per Doris Hangartner presentation), incorporating the entry discount.
- -41.8% price verification (prior fees): Entry level reflects a substantial discount to reference/market value before fees, creating a clear margin of safety.
- -30.5% price verification (after fees): Discount remains attractive even after fees versus reference/market value, preserving upside potential.
- Sharpe Ratio 0.90: Risk-adjusted return analysis implies a moderate risk-return profile with solid relative performance (ex ante Sharpe ≈ 0.8995).
- VaR 99%: Based on the VaR model, there is a 99% probability the asset’s value exceeds the initial investment after 7 years—supporting capital protection versus many collectibles.
- 15.4% standard deviation: Volatility assumption applied from comparable datasets (e.g., similar athlete profiles on cardladder.com), resulting in ~15% risk level.
- 14 sales points: Investment thesis is supported by 14 key comparables used for growth and pricing validation.
Colored gemstones have long captivated investors and collectors alike, offering a unique blend of aesthetic beauty and financial security. Unlike traditional assets, their value is driven by rarity, cultural significance, and increasing global demand. The market for fine emeralds, sapphires, spinel and rubies has seen a steady appreciation, supported by limited supply and growing interest from emerging markets. Unlike diamonds, where synthetic alternatives pose a pricing challenge, top-tier natural colored gemstones maintain strong value retention due to their individuality and limited production. With auction records continuously being set, investing in premium colored gemstones is not just about appreciation—it’s about owning a tangible piece of history with enduring worth.
Investing in this 13.94 ct natural blue sapphire is ultimately an investment in rarity at its purest form. The most defining characteristic is its “no heat” status. In today’s gemstone market, the vast majority of sapphires are thermally treated to enhance color and clarity. While treatment is common and accepted in commercial jewelry, truly untreated stones of significant size are exceptionally scarce. A no-heat certification—confirmed by independent laboratory analysis—means the sapphire’s color and internal structure are entirely natural. For serious collectors and connoisseurs, this authenticity commands enduring prestige and positions the stone within a far more exclusive segment of the market. Natural, untreated gems represent geological history untouched by human enhancement, which significantly strengthens their long-term desirability.
The origin further elevates its appeal. Sapphires from Sri Lanka—historically known as Ceylon sapphires—are regarded as the global benchmark for fine blue sapphires. For centuries, this origin has been associated with vivid yet elegant blue tones, excellent transparency, and strong market recognition. As mining output declines and export regulations tighten, access to untreated stones of this caliber from Sri Lanka is becoming progressively more limited, reinforcing their long-term scarcity value.
Finally, the sapphire’s refined cushion cut enhances both aesthetic and investment appeal. Cushion cuts combine classical elegance with strong light performance, offering balanced proportions that maximize brilliance while preserving carat weight. In large stones, a well-executed cushion cut signals craftsmanship and careful planning, further reinforcing quality. The combination of untreated status, prestigious origin, and elegant shape creates a rare convergence of authenticity, heritage, and beauty—qualities that underpin enduring collector demand and long-term value resilience
Expert

Carat Investments is a Swiss-based investment boutique specializing in real assets, with a primary focus on colored gemstones. Founded on a heritage of excellence and discretion, the company bridges centuries-old gemstone expertise with modern financial acumen to offer clients exclusive, inflation-resistant investment opportunities. Built on values of sustainability, integrity, and long-term vision, Carat Investments empowers clients to preserve and grow their wealth across generations.


