Antique Victorian 12k-14k Gold Enamel Rose Cut Diamond Band Ring S6.75 5.8G Read For Sale

Absolute one of a kind antique (possibly older) 14k yellow gold, enamel diamond ring. It’s not signed, it probably was previously but as you can see the markings on the back of the band show it’s been resized which would’ve removed any stamp. It’s not signed but tests at least 14k with acid test and gold testing machine. (Karat may range from 12k-14k, sometimes old pieces need to be tested with an X ray to be 100% accurate) it’s almost 6 grams and about size 6.75. The diamond is a gorgeous old cut stone sitting in a blue enamel (forget me not? Flower and a large layer of cream enamel front. It’s definitely hand made. It has minor discoloration around the band. There’s a small chunk of gold on the front that looks out of place, a small imperfections right above it on the gold, as well as some texture or something on the cream enamel in some areas. I have not attempted to clean or promise it! I try to avoid cleaning older items like this in case of damage. If you recognize this design or maker please let me know! I haven’t been able to find any like this on the market as well as anything similar that’s sold in the last few years. What an amazing piece of history! Please let me know if anything about this is familiar!