Netopen Raw Diamond Rough Crystal Specimen 1.4ct — Natural Fancy Purple-Pink

The Netopen Natural Fancy Purple-Pink Raw Diamond Rough Crystal Specimen at 1.4 carats represents one of the rarest color categories in the natural diamond world — the purple-pink or purplish-pink range that arises from a combination of the plastic deformation mechanism associated with natural pink diamond color and an additional hydrogen-related defect component that modifies the pure pink into the cooler, more violet-influenced purple-pink that commands premium pricing even within the already rare natural pink diamond category. Natural purple-pink diamonds are among the most statistically infrequent of all natural diamond color varieties — significant occurrences are limited to a small number of historical deposits globally, with the now-closed Argyle mine in Western Australia having been the primary documented source of natural pink and purplish-pink diamonds during its operational period. The closure of the Argyle mine in 2020 has created a permanent supply constraint on natural pink and purplish-pink rough diamonds with documented primary source provenance, making authenticated specimens of this color category increasingly significant from a collection and investment perspective as no comparable replacement source has been identified in commercial quantities. Netopen’s gemological assessment of this specimen employs the most advanced spectroscopic methods available — including angle-resolved photoluminescence spectroscopy and polarized absorption spectroscopy — to document the specific defect mechanisms responsible for the purple-pink color and to confirm that these mechanisms are of natural geological origin. The crystal is partially transparent with a warm purplish-pink body color visible in both reflected and transmitted light. Natural surface features confirm rough diamond authenticity. Dimensions approximately 5.7mm x 5.4mm x 5.1mm. Comprehensive spectroscopic analysis report, natural color origin certificate, geological rarity documentation, conflict-free provenance, and Netopen’s premium presentation case provided. Investment reference guide on the natural pink diamond category and post-Argyle market context included.