Unoaerre Italian 18K Yellow Gold Ancient Roman Coin Necklace, 16 L, 60 Grams. The renowned Italian jewelry maker, Unoaerre, has transformed an ancient Roman coin of the Roman Emperor Gordian III A. 238-244 into a wearable 18K yellow gold statement necklace. The ancient Roman coin, measuring approximately 28 mm, is mounted in an 18K yellow…