I searched for the correct bell glass diffuser for the Hubbardton Forge lamp that we broke. When it arrived, the quality of the glass was significantly different than the original glass. Visually it work but if you look closely at the glass, it is thicker and not as fine quality as the original glass. We have three Hubbardton Forge pendant lamps, so there is the ability to see the difference. I decided to keep the bell glass but am not completely satisfied.