Platinum, Carved Jade and Diamond Brooch. Photo courtesy Doyle New York

Centering one oval pierced, carved jade* plaque approximately 42.0 x 29.6 x 4.55 mm., flanked by 2 trapezoid-shaped and 22 baguette diamonds approximately 2.00 cts., quartered by 12 small single-cut diamonds, circa 1930. Jade: bright apple green, small whitish spot at top at tip of carving, translucent, high luster. Diamonds: H-I-VS. Overall good condition. 1 1/8 x 2 1/4". Estimate $8,000-12,000 - Sold for $20,000

With GIA report #5101744365 stating that the jade is natural color, no indication of impregnation. 

Doyle New York. Important Estate Jewelry. Wednesday, April 21, 2010 -http://www.doylenewyork.com/