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About product and suppliers:
        Alibaba.com offers 426 certified necklace products. About 22% of these are necklaces, 11% are loose gemstone, and 11% are gold jewelry. 

A wide variety of certified necklace options are available to you, such as wedding, party, and gift. You can also choose from silver, gold, and alloy. As well as from women's, men's, and unisex. And whether certified necklace is necklaces, earrings, or bracelets, bangles. 

There are 411 certified necklace suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and United States, which supply 75%, 20%, and 1% of certified necklace respectively. 

Certified necklace products are most popular in North America, Western Europe, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 39 with ISO9001, 26 with Other, and 13 with OHSAS18001 certification.