This sweeping cathedral setting in Platinaire®sets your ring apart from others with 3/8 ct. t.w. of princess-cut diamonds and a blue sapphire accent. This ring is available in size 7 only. Platinaire® is a patented blend of sterling silver and 5% platinum. More durable than silver, Platinaire® is hypoallergenic, environmentally responsible and nearly impervious to tarnish. Platinaire® rings cannot be resized after purchase.