9CT YG 7X5 OVAL LONDON BLUE TOPAZ & ROUND DIAMOND HALO CLUSTER RING. RHODIUM TO DIAMONDSStep into the world of luxury with this exquisite 9CT YG 7X5 OVAL LONDON BLUE TOPAZ & ROUND DIAMOND HALO CLUSTER RING. Crafted from 9ct yellow gold, this piece exudes elegance and sophistication. The oval London blue topaz at the center of the ring is a true showstopper, radiating a deep blue hue that will captivate anyone's attention. But that's not all, the topaz is surrounded by a halo of round diamonds, adding a touch of sparkle and glamour to the