A collection of rare and exquisite emeralds are up for auction in April, and the star of the collection is an extremely rare 884-carat gem.

Part of the glittering treasure trove was found on a 400-year-old shipwreck, and the gems are rarer and more expensive than diamonds.

The main draw of the collection is exquisite gem the 887-carat La Gloria, which Guernsey's bills as "one of the largest museum-quality emeralds in the world", is estimated to fetch between $4-5 million.

On the 25th April, the public will have the chance to own some of the most rare and beautiful emeralds in the world when they go up for auction in New York.