Handmade 18kt yellow gold ring with platinum prong-set approx. 3.80 ct Cushion cut natural, unheated Ceylon sapphire flanked by tapered baguettes. Accompanied by an August 18th, 2021 American Gemological Laboratories Gemstone Report no. 1116925 stating this is one, "Natural Corundum, Sapphire, Transparent, Blue, Cushion, Mixed Cut, Approx. 9.82 x 8.20 x 5.38mm, Origin: Sri Lanka, No gemological evidence of heat, Clarity enhancement: None". Stamped, "Handmade 18k PLAT" to interior of band. Ring size - 6 1/4. Total approx. weight is 3.6 dwt (gross). From a Larchmont, NY estate.