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About product and suppliers:
        Alibaba.com offers 4,910 uncut diamonds products. About 58% of these are loose diamonds, 16% are abrasives, and 12% are loose gemstone. 

A wide variety of uncut diamonds options are available to you, such as d, h, and g. You can also choose from vvs1, vs2, and si2. As well as from synthetic (lab created), natural. And whether uncut diamonds is round brilliant cut, cushion cut, or princess cut. 

There are 4,422 uncut diamonds suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Zimbabwe, which supply 47%, 29%, and 6% of uncut diamonds respectively. 

Uncut diamonds products are most popular in North America, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 293 with ISO9001, 285 with Other, and 158 with OHSAS18001 certification.