The most valuable jewels in the line-up are a sapphire and diamond Marina B necklace with matching earrings. Sold as a set, the Amelia suite's estimated £305,000-390,000 price tag reflects the fact that the necklace alone features more than 100 carats of

The most valuable jewels in the line-up are a sapphire and diamond Marina B necklace with matching earrings. Sold as a set, the Amelia suite's estimated £305,000-390,000 price tag reflects the fact that the necklace alone features more than 100 carats of natural Ceylon sapphires.