A natural pearl, diamond and sapphire necklace, the graduated pearls, measuring approximately 7.20 mm to 2.10 mm, completed with a cartouche-shaped open work plaque clasp mounted with old brilliant, baguette and single-cut diamonds centering a circular-shaped sapphire, diamonds approximately 0.83 carat total, sapphire weighs approximately 0.50 carat, mounted in 18 carat white gold, length 70.5 cm. Accompanied by a report from the Gem Studies Laboratory (GSL), Australia, stating that the pearls are natural, saltwater. Report number AA53035, dated April 2014.