A necklace set with a cabochon opal, mounted in 24k gold and partly oxidized silver. L. 42.5-45.5 cm. A necklace set with a cabochon boulder opal weighing app. 15.20 ct, mounted in 24k gold and partly oxidized silver. Weight app. 24 g. Pendant L. 24 mm. L. 42.5-45.5 cm. Accompanied by case, invoice no. 137193, jewellery appraisal from 1997 and drawing from designer. Minor wear due to age and use.