NATURAL COLORED DIAMOND 0.31 CT | CLARITY: Si1 | CUT: CUSHION
Official Appraiser’s Valuation: 4,674 USD 17,387.50 PLN gross (as of September 3, 2026)
DOCUMENTATION AND EXPERT APPRAISAL:
Certificate: The diamond comes with a certificate from an appraiser of the Polish Gemmological Society (Diamond Sky) featuring a catalog photo and a QR code.
Expert: Jan Karaszkiewicz—a distinguished expert on colored gemstones, a highly regarded diamond appraiser, and Secretary General of the Polish Gemmological Society.
Net Appraisal Value: 3,800 USD
Gross valuation: 4,674 USD
DIAMOND SPECIFICATIONS:
Weight: 0.31 CT
Clarity: Si1
Color: Fancy deep green-yellow
Dimensions: 3.55 x 3.76 x 2.57 mm
Cut Type and Shape: Cushion
Proportions / Symmetry: Very good / Very good
Finish / Cut Grade: Very Good / Very Good
INVESTMENT AND JEWELRY POTENTIAL:
Appreciation in Value: Prices for fancy-color diamonds show a strong, long-term upward trend, significantly outpacing the price increases of colorless diamonds. This is due to their extreme rarity—it is estimated that for every 1,000 carats of colorless diamonds mined, there is only 1 carat of colored diamonds. This high degree of rarity, combined with unique characteristics, guarantees excellent growth potential on the alternative market.
Rarity and Supply: The closure of key mines (such as Argyle in Australia) has drastically reduced the global availability of new specimens. Due to these factors, natural colored diamonds represent a safe investment and a stable collectible asset in an era of mass-produced synthetic stones. The modern radiant cut, with its brilliance and geometric elegance, further emphasizes the intensity of the color and enhances the stone’s aesthetic and commercial value.
Uses: The diamond can serve as a stable capital investment or be set in a unique ring or pendant. Setting the stone in a jewelry mount significantly increases the final value of the finished piece.
