British Flush Hallmarked.30ct. diamond ring within thick bandCenter diamond: Oval & Full cut J- color & SI-1 clarity. 3.5 X 4.8mm18kt. gold. 5.2 Gramsfree sizing and shippingRing is 3.7mm wideCurrent Size: 6.5 (US)Resizing is possible, please inquire.Several British Hallmarks within ring.