RETIRED Swarovski 1997 Society Member Renewal Gift - Blue (Azur) Crystal Heart In excellent condition. Includes original box. This Blue Crystal Heart (also referred to as "Azur Heart" or "Eternity Light Blue Heart") was the 1997 Society Renewal Gift. It was only available in 1997. It is blue and made from Swarovski crystal (a form of lead-free glass with a high refractive index). It was designed by Edith Mair and measures approximately 1/2 inches.