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About product and suppliers:
        Alibaba.com offers 1,059 certified loose diamonds products. About 84% of these are loose diamonds, 11% are loose gemstone. 

A wide variety of certified loose diamonds options are available to you, such as si1, vs1, and vvs2. You can also choose from round brilliant cut, asscher cut, and radiant cut. As well as from g, d, and f. And whether certified loose diamonds is natural, or synthetic (lab created). 

There are 965 certified loose diamonds suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and United States, which supply 34%, 28%, and 23% of certified loose diamonds respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 113 with Other, 69 with ISO9001, and 19 with HACCP certification.
        
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