Set includes 3 rings from Catbird: hammered stacker, heart and opal (?). I purchased the hammered and stone ones directly from Catbird years ago but I can’t find the receipt, both are size 7. The heart ring I purchased on the second hand market and it was sold to me as a 6.5 but all 3 have fit me well stacked. I’d love the keep the 3 together so offering at a good price. I wore these daily for years so they have general wear to them. I have another yellow gold stack I wear so parting with these. The heart ring is no longer made, it was part of their popular letter collection.