I've set this beautiful 10 x 8mm sky blue topaz cabochon in a deep bezel setting.  The ring is a d-section band, 2.3mm wide and is very comfortable to wear.  I've given the band an irregular textured finish to catch the light.  This is a UK size M, US size 6.
If you have any questions, please email me at lydia@niziblian.com
 
Hallmarked at London Assay Office.  This will be sent gift packaged, if you'd like a note included please let me know.