There are no inclusions, this is a superior sapphire. Accompanying old cut diamonds; 1.5-2mm, 0.02-0.05ct. Panel diameter; just over 16mm. Total diamond carat weight estimated 0.20ct. This is a remarkable piece.As we aim to provide a very personable service, your full feedback is greatly appreciated. Please see our testimonials page to view just a sample of our feedback from now, repeat, long term. The item "EDWARDIAN 15CT PLATINUM NATURAL SAPPHIRE OLD CUT DIAMOND LAVALIERE NECKLACE" is in sale since Tuesday, March 12, 2019. This item is in the category "Jewellery & Watches\Vintage & Antique Jewellery\Vintage Fine Jewellery\Edwardian (1901-1910)". The seller is "suecrispin" and is located in Hemel Hempstead. This item can be shipped worldwide.