![Amazon.com: ITI Precious Genuine 750 18K Gold Mariner Curb Chain in Solid 18K Yellow Gold (3.70, 18in) : Clothing, Shoes & Jewelry Amazon.com: ITI Precious Genuine 750 18K Gold Mariner Curb Chain in Solid 18K Yellow Gold (3.70, 18in) : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/61Ey2z4JOnL._AC_UY1100_.jpg)
Amazon.com: ITI Precious Genuine 750 18K Gold Mariner Curb Chain in Solid 18K Yellow Gold (3.70, 18in) : Clothing, Shoes & Jewelry
![I know the 750 (18k) should tell me this is gold, but a tiny part of me thinks that It might fake, cus i get a great deal on it...so MY QUESTION; I know the 750 (18k) should tell me this is gold, but a tiny part of me thinks that It might fake, cus i get a great deal on it...so MY QUESTION;](https://i.redd.it/08gs56mabav81.jpg)
I know the 750 (18k) should tell me this is gold, but a tiny part of me thinks that It might fake, cus i get a great deal on it...so MY QUESTION;
![Found this ring today by a river. Hallmarked 18K 750 but was tarnished like brass til I polished it up a tad. An old fake perhaps, or can 18K come out of Found this ring today by a river. Hallmarked 18K 750 but was tarnished like brass til I polished it up a tad. An old fake perhaps, or can 18K come out of](https://i.redd.it/4de6oosmgm871.jpg)