10kt Yellow Gold Aquamarine Ring

This one is special! It has a Emerald cut stone approximately 2 carats (but I am not a professional jeweler). It is a light blue aquamarine. It is yellow gold but on the front of the stone is a silver & gold leaf design that is just beautiful! It is a size 7. I took a picture of the 10k mark but it is so small you need a magnifying glass to see it clearly. There''s also a CTS mark. I don''t know what or who that means.