Sharp cuts, faceted hobstars, and accuracy in cutting are things to consider. Patterns that include a Gothic arch, swirls, pointed loops, panels and circles are prized. Some patterns, such as Lattice, Imperial, Parisian, and Arabian are more desirable than others. The condition of the piece is very important. Small nicks and scratches are common because of their age and use.
Value drops significantly if the glass is fractured, cloudy, bruised, chipped, or repaired.
Some pieces are more desirable than others. Large pieces such as punch bowls, oil lamps, fish trays, ice cream trays, and footed cake trays are treasured by collectors. Hinged boxes, baskets, inkwells, canoes, and candlesticks are prized. Pieces with a lid or holder such as a butter or cheese dish or a handkerchief or glove box are just a few things to look for. Collectors especially seek out pieces with silver mountings such as cologne bottles, candelabra, decanters and jewel boxes.