Exceptional 4.18ct Unheated Blue Ceylon Sapphire This stunning natural blue sapphire is a rare and highly sought after find. Sourced from the famous gem producing region of Ceylon (Sri Lanka), it boasts a bright, captivating blue color that will make any piece of custom jewelry or collection stand out. ​ What makes this gem truly exceptional is its purity. As officially confirmed by the included Bellerophon Gemlab report, this sapphire is completely natural with no indications of heating or treatment. Finding an untreated gemstone of this impressive size and clarity is incredibly rare it is exactly as nature made it over millions of years. ​ Key Gemstone Details: ​ Carat Weight: 4.185 ct (A wonderful, substantial size) ​Color: Blue ​Shape: Oval ​Measurements: 10.36 x 7.30 x 6.27 mm ​Origin: Ceylon (Sri Lanka) ​Treatment: 100% Natural, No Heating ​Certification: Includes original Bellerophon Gemlab paperwork (Report No. B38209, dated January 2025) ​ Whether you are an avid collector, an investor in rare natural stones, or looking for the perfect center stone for a custom engagement ring, this Sri Lankan sapphire is a brilliant choice. ​ Don't miss your chance to own this completely natural beauty.