Natural Blue Sapphire 6.59 Carat with Inspection Certificate For sale: a natural blue sapphire stone with a distinctive weight of 6.59 carats and a beautiful blue color, suitable for setting in a ring or pendant, or for collecting within a gemstone collection. 🔹 Stone Type: Natural Blue Sapphire 🔹 Weight: 6.59 Carats 🔹 Shape: Oval Cut 🔹 Hardness: 9 on the Mohs scale 🔹 Refractive Index: 1.760 🔹 The stone comes with a laboratory inspection certificate The stone features a good size and an attractive blue color with a natural appearance, making it a suitable choice for gemstone enthusiasts and those wishing to design a unique piece of jewelry. 📜 The inspection certificate is attached in the photos. 📸 All photos are of the actual stone for sale. 📩 For communication and inquiries, please message me privately. Serious buyers only, please.