This 18K yellow gold Yvonne Léon mixed chain diamond ring is crafted in France and features a faceted pear cut diamond set in white gold. It's characterised by its contrasting design, with square links to one side and small circular links to the other. Apparently pears are amongst the least favourite fruits in the world. However, we think it depends on the variety - we need not call a conference to agree that this Yvonne Léon piece is a treat.