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The Chopard’s Blue Diamond Ring is an absolutely exquisite ornament, and one of the most expensive jewellery pieces in the world. The main reason is the blue diamond, since this kind of gem is hugely coveted and costly, because of its exclusivity. The ring by Chopard features an oval-shaped blue diamond weighing 9 carats, which is set in white gold of 18 carats, along with triangular clear diamonds on the sides. Together, the ring is definitely one that can make any woman’s heart swoon. The rare and beautiful piece is currently valued at $16.26 million.
source by https://www.wonderslist.com/10-most-expensive-jewellery-pieces-in-the-world/