9CT YG 6X4 OVAL LONDON BLUE TOPAZ AND ROUND DIAMOND CLAW SET 3ST RING. RHODIUM TO DIAMONDSIndulge in the luxurious elegance of this 9CT YG 6X4 OVAL LONDON BLUE TOPAZ AND ROUND DIAMOND CLAW SET 3ST RING. RHODIUM TO DIAMONDS from Baldwin Jewellery. This exquisite piece features the finest 9ct Yellow Gold, carefully crafted to showcase the stunning oval cut London Blue Topaz. The rich blue hues of the topaz are perfectly complemented by the sparkling round diamonds that are elegantly claw set. Expertly designed and crafted, this ring is a