Iridescent glass vase by Colin Heaney
irridescent. Most commonly used to describe the finish in glass and ceramics, an iridescent finish is one that subtly changes colour when moved and the light strikes it at a different angle. In glass, objects by Louis Comfort Tiffany in the United States, and Loetz in Bohemia often have irridescencent finish. Examples of ceramics with an irridescent finish are the Wedgwood Fairyland lustre range, the Doulton Flambe range, and the output of the Hungarian manufacturer Zsolnay.
The buyers premium is an additional percentage charge on the hammer price of the item, imposed by the auction house to cover administrative costs. The buyers premium percentage varies between auction houses, with a range of 12.5% to 22%.