It measured 24mm X 20mm. Stone is measuring 10mm X 11.9mm. Total set weight is 19.3 grams. There is no stamp but was tested and verified.PLEASE KEEP IN MIND THAT ALL PICTURES ARE ENLARGED TO SHOW THE DETAILS OF ALL ITEMS. The item "BRAZILIAN 18K WHITE GOLD SAPPHIRE DIAMOND EARRINGS & RING FILIGREE SET RARE" is in sale since Tuesday, March 8, 2016. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Jewelry Sets\Diamonds & Gemstones". The seller is "alikkiev" and is located in Jamison, Pennsylvania. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Singapore, Norway, Saudi arabia, United arab emirates, Qatar, Bahrain, Croatia, Malaysia, Kuwait, Colombia.