Item Description: RARE 4ct Natural Blue Purple Ceylon NO HEAT Star Sapphire with. 30ct in VS G Diamonds. Platinum and all original and circa 1940s. These are hard to find.Stone: Star Sapphire and Diamonds Metal: Platinum Ring Size: 11.5 Gram Weight: 10.8 grams. Powered by SixBit's eCommerce Solution. The item "Vintage 1940s 4ct Natural Blue Star Sapphire Diamond Platinum Mens Ring" is in sale since Monday, April 24, 2017. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "oldtreasures333" and is located in American Fork, Utah. This item can be shipped worldwide.