Chanel's signature piece, the Allure Céleste, evokes the night sky with bursts of star and moon motifs. The necklace is made of round-cut diamonds with a 55.55-carat intense blue oval sapphire “moon” and an 8.05-carat pear-cut diamond “comet” for its centrepieces. Source: Chanel

Marianne Etchebarne, global head of watches and fine jewellery product marketing, Chanel