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About product and suppliers:
        Alibaba.com offers 1,037 certified loose diamonds products. About 83% of these are loose diamonds, 1% are abrasives. 

A wide variety of certified loose diamonds options are available to you, such as vvs1, vs1, and if. You can also choose from natural, synthetic (lab created). As well as from d, e, and g. And whether certified loose diamonds is round brilliant cut, princess cut, or asscher cut. 

There are 943 certified loose diamonds suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and United States, which supply 29%, 28%, and 28% of certified loose diamonds respectively. 

Certified loose diamonds products are most popular in North America, Southeast Asia, and South America. 

You can ensure product safety by selecting from certified suppliers, including 92 with Other, 56 with ISO9001, and 20 with HACCP certification.