eFaucets offers the DecoLav Incandescence Round Above-Counter Resin Lavatory Sink in Magma, model no. 2806-MAG, or Atmosphere, model no. 2806-ATM, for $156.74. Coupon code "SAVE5" cuts that to $148.90. With $19 for shipping, that's the lowest total price we could find by $90. It measures approximately 16" x 16" x 6" and features a flat bottom and perpendicular walls.
Also available is the DecoLav Incandescence Rectangular Above-Counter Resin Lavatory Sink, in Magma, model no. 2802-HNC, for $173.75 before coupon, $165.06 after. With $19 for shipping, that's the lowest total price we could find by $62. It measures approximately 18" x 15" x 5" and features rounded corners and a sloped basin.