9CT YG 10X8 OVAL LONDON BLUE TOPAZ AND DIAMOND CLAW SET CLUSTER RING. RHODIUM TO DIAMONDSElevate your look with the stunning 9ct Yellow Gold London Blue Topaz & Diamond Cluster Ring from Baldwin Jewellery. This exquisite piece features a 2. 90 carat oval London Blue Topaz, secured by a claw setting and surrounded by sparkling diamonds. The yellow gold band is also accented with rhodium plated diamonds for added luxury. The vibrant blue colour of the topaz is complemented by the bright white of the diamonds, making this ring a true