This is a 9 ct. yellow gold ring, set with a cluster of round cut diamonds.  The cluster measures approximately 7.5 mm. (just over 0.25”) in diameter.

The ring is a size L½ and it weighs 2.9 g.  It has a number of marks which I have found rather puzzling.  At one end of the band is what is probably “9K”.  At the other end is a series of marks beginning with what I am assuming to be a maker’s mark.  This first mark appears as a symbol rather than letters.  There follows “375”, then a crown and then another crown in a slightly different form.  Finally there is the letter “e” in lower case.  I hope this will make better sense to some of you than it does to me!

The ring appears to be in a good used condition - but as I do not know its age that is rather hard for me to quantify.