You may have already found this information...if not here is what I found at:http://www.goantiques.com/detail,antique-deco-gold,1875424.html
(it even has a picture of ring)
"Antique Deco Gold Traub Orange Blossom Wedding Ring Vintage Jewelry"
"Antiques > Jewelry
Dealer: Precious & Rare Pieces
Price: $369.00 USD"
They have Orange Blossom rings created in detroit michigan that have already sold but does not give price.
I hope this is helpful