Vintage NOS 1970 Silver Linde Ruby Star Sapphire and Genuine Diamond Ladies Ring

Brand new old stock item from the 1970's (NOS)
Acquired from a jeweler's estate
Item has been polished, cleaned and rhodium-plated
Marked 925 on shank
Crafted of solid Sterling Silver 925
Ring weighs 2.90 grams
Features a prong-set 7mm x 5mm Linde ruby star sapphire (image shows script "L" Linde mark on back of stone)
Prong-set with 6 genuine Diamonds (.03 ctw)
Gift boxed