New Old Stock NWT EDCO Ring Band sz 5 Rhodium Marcasite & Pear Cut Topaz

Still with its original vintage tags, this is a size 5 Edco ring. The label says "Rhodium," which I assume is its plating. It features a border of marcasite, that test as genuine, as well as a pear cut pink topaz, which also tests as real. Marked on the tag that its number was 532113. It's 14mm wide at its widest, the topaz measures 9mm by 6mm, and it weighs 2.6 grams.