Vintage 14k Plumb Yellow Gold (PLUMB GOLD is guaranteed to have a gold purity no less than indicated on the item (14K), but could possibly be slightly more pure. Never less.) This is a stunning ring. The sapphires are a beautiful color blue. They are not almost black like many sapphires in stores today. Sapphire is September's birthstone Vintage-see all photos and video. Note pictures were taken with and without flash. Non smoking but a pug lives here.