Our Stunning 73 carat Blue Sapphire and White Diamond Crystalline necklace is nothing short of fabulous. Perfect for any special occasion, especially when looking for "something blue". Main Stone Type: Blue Sapphire Gem Origin: Lab Created Main Stone Size: 18x24mm Total Gem Weight: 73tcw Metal Type: Sterling Silver 925 Metal Finish: Platinum Necklace Length: 17 inches plus 2 inches for a pendant Pendant is not removable