Penngrove is an unbelievable and authentic Art Deco (circa 1923) platinum ring with an exceptional mounting designed by the famous jeweler Cartier. This stunning geometric ring centers a Square Step Cut natural emerald gauged at 7.25mm x 7.25mm x 4.40mm totaling approximately 1.70ct in weight. The stone is accompanied by a Guild Laboratories Certificate stating the emerald is Colombian with Minor clarity enhancement. This unbelievable emerald, with a perfect amount of vibrant green saturation, is set on a bias and accented by an octagonal halo of sixteen Baguette and Trapazoid Cut diamonds, totaling approximately 1.15ct in weight graded F-G color and VS clarity. Penngrove is further detailed with four Old European Cut diamonds lining the shoulders totaling approximately 0.10ct in weight and also graded F-G color and VS clarity. The ring is stamped "Cartier MTG" on the side of the shank and numbered 54-5 1923 on the inside shank. The ring is currently a size 4.5 and can be sized to fit most additional ring sizes. Please contact on concierge with sizing questions.