Iridescent Bowl Entity 2411 by Katherine Gray

What color is this bowl? The answer changes every time you move. Katherine Gray's Iridescent Bowl Entity 2411 shifts through rose, violet, blue, gold, and green as light travels across its velvety surface. The restrained form allows the extraordinary optical effect to become the subject of the work itself.

Gray is an internationally respected artist, educator, curator, and writer whose work explores glass as a material that is at once ubiquitous and almost invisible. She is a Fellow of the American Craft Council, recipient of Pilchuck Glass School's Libensky-Brychtova Award, and familiar to millions of viewers as the Resident Evaluator on Netflix's Blown Away.

And here is the best fun fact: the iridescent coating Gray uses employs technology originally developed for NASA spacecraft windows. She loves that this space-age process mimics the shimmering surfaces found on ancient glass buried for thousands of years -- past and future meeting in one luminous object.

Dimensions (in. WxHxD): 10 x 5 x 13

Learn more about the artist at www.katherine-gray.com.

The Live Auction will take place Sep. 18 at 8pm ET. Bid live at the event, place bids online via Live Auctioneers, or submit absentee bids by contacting Heather McElwee at 412-365-2145 or heather@pittsburghglasscenter.org.