: Unlike polished gems, rough diamonds often have a dull or "greasy" luster.
Purchasing uncut diamonds, also known as , requires careful attention to ethical sourcing certifications and stone quality, as traditional grading reports for color and clarity are generally unavailable for stones in their raw form. Top Online Retailers for Rough Diamonds
: For higher-value rough stones, consider auction sites like Gem Rock Auctions , which often feature conflict-free natural grey or silver rough diamonds. where to buy uncut diamonds
: The Gemological Institute of America (GIA) provides reports that use scientific evaluation to confirm a diamond's geographic origin. However, note that these are usually only available for diamonds that have gone through GIA Rough Analysis before polishing.
These specialized retailers focus on rough diamonds for collectors and custom jewelry designers. : Unlike polished gems, rough diamonds often have
: Look for characteristic diamond shapes such as octahedrons (two triangles pushed together) or dodecahedrons .
: Brands like Shane Co. and Brilliant Earth emphasize ethically sourced mined diamonds, though they primarily sell finished jewelry. Expert Tips for Buyers : The Gemological Institute of America (GIA) provides
: A leading source for ethically mined, Kimberley Process-certified rough diamonds. They offer a wide variety of shapes, including octahedrons and dodecahedrons , with options like the Rough Diamonds Boart ($650.00) or individual stones handpicked for quality.