A ruby, pearl and diamond insect pendant necklace

A ruby, pearl and diamond insect pendant necklace, designed as beetle, the body set with a pearl below a cushion-cut ruby to the head and rose-cut diamonds to the shoulders in yellow gold, suspended from a half pearl between to circular-cut rubies, to a fine link chain, pendant length 3cm, chain length including ruby and pearl section 39cm

A verbal report from GCS states that the pearl is a natural saltwater blister pearl.