This is a vintage made ca. 1970 ring that is made by and designed by Marianne Berg of Norway. She designed and made this for Uni David Andersen. The ring is made from 925S Sterling Silver and the clear stone is rock crystal. I do not know the size of the ring however the inside diameter of the ring is right at 11/16 of an inch.In metric this is 15 mm. The bottom band of the ring is wide and tapers up to the mount for the stone. The stone is also 11/16 inch in diameter and sits approx. 5/8 inch above the base of the mount. The prongs holding the stone are secure with no looseness of any kind.
The stone has no scratches or chips. The ring has been worn and shows normal wear for its age of almost 50 years.The hallmark shows "Uni D-A 925S MB (for Berg) Sterling Norway". This piece is in excellent condition. The item "Norwegian Norway Marianne Berg Uni David Andersen Ring 925S Rock Crystal vintage" is in sale since Sunday, December 23, 2018. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Vintage Ethnic/Regional/Tribal\Scandinavian".
The seller is "vern0001" and is located in Prior Lake, Minnesota. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Viet nam.