Netopen Raw Diamond Rough Crystal Specimen 1.8ct — Natural Pink Blush

The Netopen Natural Pink Blush Raw Diamond Rough Crystal Specimen at 1.8 carats occupies among the most rarified positions in the natural rough diamond collector market — natural pink diamonds, whose color arises from a poorly understood structural defect mechanism involving the 550nm absorption band in the diamond’s electronic structure that selectively absorbs green wavelengths and transmits the red and violet wavelengths responsible for the pink appearance. Natural pink diamonds represent a tiny fraction of world diamond production, with significant sources historically limited to the Argyle mine in Western Australia — now closed — and minor occurrences in Brazilian and African production, making natural pink rough specimens of documented provenance increasingly difficult to source and consequently of significant and growing collector and investment interest. Netopen’s gemological team has assessed this specimen through advanced spectroscopic analysis to confirm the natural origin of the pink color and to rule out irradiation treatment, which can artificially create pink color in previously colorless or yellow rough diamonds and which requires disclosure under international gemological standards. The blush character of the pink — a soft, slightly warm-tinted pink rather than a highly saturated hot pink — is characteristic of the majority of naturally pink rough diamonds recovered from documented geological sources, where the intensity of the color mechanism rarely reaches the vivid saturation seen in a small number of exceptional historic stones. The crystal shows partial transparency in the primary octahedral body with a slight haziness from included material characteristic of naturally pink rough. Surface features include natural trigon etch pits, growth hillocks, and minor surface texture. Dimensions approximately 6.1mm x 5.8mm x 5.5mm. Supplied in Netopen’s premium presentation box with comprehensive gemological documentation, natural color origin certificate, and collector’s investment reference guide on the pink diamond category.