Georgian planetary ring

A planetary ring, circa 1820, the gold decorative twisted shank supporting an oval cluster set with a harlequin array of gemstones in foiled and closed back settings. The gem-stones represent the perceived influences of different planets, reflecting the keen interest in astrology and planetary symbolism at the time. According to G.F. Kunz in Rings For The Finger,  gems associated with certain planets were believed to have positive astrological effects for the wearer. In the centre of this ring is a moonstone [the Moon] surrounded by : amethyst -Saturn, garnet – the Sun, citrine – Jupiter, zircons – Venus, tourmaline -Mercury. The ring is size J [US 4 and 5/8] and the gem-set ring head measures 2/3 of an inch by 1/2 an inch. Rare and immaculate.