Necklaces, Earrings, Pendants, Rings for every occasion. Only 14K Gold and higher is used to produce a fine line of designer jewelry made here in the USA. We carry gemstones for every birthstone and engagement rings to compliment everyone’s style. We also have Center Stones in our engagement settings to fit anyone’s budget. Diamonds on the Plaza is located in the Historical District of St. Augustine, FL! The Oldest City in America.