I also don't know how many karats gold. The item "Antique Ornate 1930s White Gold Diamond Art Deco Solitaire Engagement Ring Vtg" is in sale since Wednesday, October 7, 2020.
This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Fine\Art Nouveau/Art Deco 1895-1935\Rings". The seller is "calamitythrift" and is located in Williams, Oregon. This item can be shipped worldwide.