Ceylon Natural Unheated Blue Sapphire Old Mine Cut Diamond Ring

18ct Gold 4.50cts Natural, Unheated, Ceylon Blue Sapphire 2.50cts Old Mine Cut White Diamonds A captivating cornflower blue Complete with a certificate from GCS stating the sapphire has been tested and found to have had no heat treatments There is little wonder that the then Lady Diana Spencer who was soon to become Princess Diana chose a Ceylon Sapphire surrounded by diamonds as her engagement ring. A stunning and classic combination, it wowed the world then and is wowing the world still, now firmly on the engagement finger of Kate Middleton The Duchess of Cambridge. This has become the most sort after combination and style of sapphire ring in the world. Unheated sapphires are extremely rare and rarer still as the gems increase in size 97.5% of the world's mined sapphires are heated to alter the colour of the stone and to try and create the beauty you have here in this natural jewel. This incredible piece is from the late 1800’s early 1900’s A treasure, an heirloom for future generations