RAPAPORT... Bonhams will spotlight a 2.17-carat Van Cleef & Arpels bluediamond ring at its upcoming sale, estimating it will fetch $800,000 to $1.2 million. The emerald-cut, fancy-intense-blue, VVS2-clarity diamond isaccented by round brilliant-cut diamonds. The piece, from a private collection,will lead the September 26 New York Jewels auction. Other pieces from the Van Cleef collection include anoval-shaped, 21.56-carat Burmese sapphire ring flanked by diamonds, valued at$250,000 to $350,000. An emerald-cut, 6.09-carat, fancy-vivid-yellow diamondring, surrounded by white diamonds, is estimated at $140,000 to $180,000. The sale will also feature a round brilliant-cut,11.11-carat, E-color, VS2-clarity diamond, which is expected to go underthe hammer for $250,000 to $450,000. A 24.64-carat, fancy-yellow diamond ring,centered between two white diamonds, is valued at $270,000 to $370,000, while acushion-shaped, modified brilliant-cut, fancy-deep-pink diamond ring weighing2.42 carats carries an estimate of $200,000 to $300,000. Several Art Deco pieces, including two items from the estateof German silent-film actor Joseph Schildkraut, will also be up for auction. Bonhams will hold an exhibition tour of the pieces in LosAngeles, Hong Kong and New York prior to the sale. Image: The Van Cleef & Arpels blue-diamond ring. (Bonhams)