This is probably the biggest sapphire ring ever. Made out of a royal blue sapphire stone weighing 69.35carat, this engagement ring looks like a bigger version of the one given to Princess Diana, currently passed on to Kate Middleton, fiancé of Prince William.
The sapphire is surrounded by sixteen half-carat diamonds and has been designed and created by the Natural Sapphire Company, a famous gem mine in Sri Lanka. Sapphires have become popular as the gem when it comes to selecting engagement rings in recent years. And the Natural Sapphire Company says it has seen a rise in orders for sapphire rings, post the royal engagement. This ring is easily the most expensive sapphire ring, priced at $1.5 million (approx Rs. 6.63 crore).