LONDON BLUE TOPAZ & WHITE cubic zirconia RING 925 STERLING SILVER. This product data sheet is originally written in English. NATURAL LONDON BLUE TOPAZ & WHITE CZ RING 925 STERLING SILVER. 11.7 X 15.4 mm. 4.0 X 6.0 - 1.1 mm.The item must be in original condition. Please do not make any single payments if you want to combine. If you have any questions. We're confident we can resolve any issues to your satisfaction. We're confident we can resolve any issues.