The Lemaire RingDark Blue Sapphire & Diamond Halo Ring The Lemaire Ring features a vivid blue 0. 64ct natural sapphire, surrounded by a glittering halo of old European cut diamonds. A scalloped platinum setting enhances each diamond's bright F G colour, while the rich 18K yellow gold band provides colour and contrast to the centre sapphire. The appraisal of the vintage ring is attached as one of the images; there you will find detailed information about the ring, as