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Art Deco Black Agate, Platinum, Carved Jade and Ruby Bead and Diamond Box, Cartier, France. Estimate $15,000-20,000. Photo Doyle New York.

18 kt., the rectangular black agate box with rounded corners, centering one rectangular carved jade plaque approximately 18.4 x 13.3 mm., flanked by two rose-cut diamond-set plaques, accented by 2 rectangular platinum plaques centering 2 diamond-set carved ruby beads flanked by 8 rose-cut diamonds, the back panel surmounted by two rectangular platinum plaques centering 2 carved jade flanked by 16 rose-cut diamonds, the hinged diamond-set thumbpiece of similar motif, with carved ruby bead and jade plaque, joined by two diamond-set bands,signed Cartier, Made in France, no. 02044, with French assay marks, circa 1920. 2 7/16 x 3 11/16 x 5/8 inches. Good condition.

A Private Collection, New York and Florida

Agate: overall even black, opaque, with translucent brown area at lower right corner, very good polish.
Carved jade: medium deep to deep apple green, minor mottling, low luster.
Ruby beads: medium pinkish-red to medium deep raspberry red, moderately included, slightly visible to eye, translucent, good polish.
Diamonds: rose-cuts, I-J-VS.

Doyle New York. Important Jewelry. Tuesday, October 21, 2014 at 10am