I believe it's real pearl with Alloy metal.. I don't see any marks, but you can look up the info from Super Jewelers where these came from, and the invoice receipt I have comes from there too. Here is the link/url:>>> http://www.superjeweler.com/GemstoneJewelry/Pearl-Jewelry.asp
I'm not sure because my receipt does not say, so this is the url/link that you can look it up, however the exact item is now sold out there as you will see. Here is the link/url:>>>http://www.superjeweler.com/GemstoneJewelry/Pearl-Earrings.asp