Cocktail Ring Yellow Gold Tourmaline

18k yellow gold (750/1000) ring set with a pink tourmaline and six diamonds. One rectangular cushion-cut tourmaline, weighing approximately 4.81 carats. Six brilliant-cut diamonds, weighing approximately 0.15 carats each (0.025 carats per diamond). Width at the top: 1.31 cm. Ring size: 54. Total weight: 4.77 g. Owl hallmark. Excellent condition.