The 4 diamonds are probably only chips or old mine cut. I took them to my local jeweler but it would be silly to get it appraised because then I'd have to start with a higher price.The jeweler said that the stone is genuine and I have a diamond detector that tests the sides stones as genuine. All the stones are prong set. On the inside of the band you will see the 10k stamp and a hallmark to the left - I don't recognize the maker. The item "Vintage 10k Yellow gold Men's ring withGenuine Garnet & Diamonds sz 10.5 / 4.9g" is in sale since Monday, May 21, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Diamond".
The seller is "xyz107" and is located in Halethorpe, Maryland. This item can be shipped to United States.