Netopen Raw Diamond Rough Crystal Lot — 5 Stones 0.3ct–0.7ct Assorted Natural

The Netopen Natural Raw Diamond Rough Crystal Lot of five stones ranging from 0.3 to 0.7 carats each provides the entry point for new collectors, jewelry designers, and educational institutions seeking to assemble a representative selection of natural rough diamond material at an accessible combined price that reflects the group acquisition efficiency of purchasing a curated selection rather than individual specimens. The five stones in each lot are individually selected by Netopen’s gemological team to represent variety across the natural rough diamond crystal character range — typically including at least two distinct crystal habits from the octahedral, dodecahedral, and macle categories; at least two natural color characters from the colorless, near-colorless, champagne, and brown range; and a spread of surface feature types including trigon etch pits, growth hillocks, dissolution surfaces, and natural frosting that collectively provide an educational survey of the natural rough diamond surface feature vocabulary. Each stone in the lot is individually weighed on a calibrated gemological balance to ±0.01 carat accuracy, with individual weights recorded on the lot certificate. Every stone is assessed for natural origin — confirming that color and crystal form are naturally occurring and not the result of artificial treatment or simulant substitution. Total lot weight varies between 1.9 and 2.8 carats across the five-stone composition. Conflict-free provenance documentation covers all five stones collectively through Netopen’s consolidated lot provenance system. The lot is supplied in a Netopen multi-compartment specimen box with individual velvet recesses for each stone, a lot gemological certificate listing individual stone data, a conflict-free provenance document, and a collector’s reference guide describing the crystal features and geological significance of each stone type included. Ideal as a starter collection, a design material selection for jewelry makers working with rough diamond, or an educational display set.