This ring doesn't appear until Winds of Change (book 4 of the prequels)
In the story, the three rows of 'gems' you see consist of Rubies, Emeralds, and Diamonds.
It was a gift made by Lord Jaydren and Lady Maris
Now for the story behind the ring itself.
This ring was among other pieces of costume jewelry I received from my mother at her death. I wondered why mom had such a ring and on what occasion she would have worn it.
The ring isn't my style, nor, in my opinion, was it my mothers. However, I knew that things always happen for reasons and I ended up with the ring.
I confess that I would never wear this ring unless it did what I had Revaya's ring do. If you want to know what it does, you'll have to wait for "Winds of Change" which will be released next year.