A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of blue and white enamel, accented

A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of blue and white enamel, accented by further flat cut diamonds, no assay marks, size N / 6.5, 7.4g.

A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of blue and white enamel, accented by further diamonds, no assay marks, size N / 6.5, 7.4g.

A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of blue and white enamel, accented by further diamonds, no assay marks, size N / 6.5, 7.4g.

A BLUE ENAMEL AND DIAMOND RING set with a flat cut diamond in a border of blue and white enamel, accented by further diamonds, no assay marks, size M / 6, 8.4g.

A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further diamonds, no assay marks, size M / 6, 6.4g.

A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further diamonds, no assay marks, size M / 6, 6.2g.

A DIAMOND AND ENAMEL RING set with a flat cut diamond in a border of green and white enamel, accented by further diamonds, no assay marks, size O / 7, 8.0g.

A DIAMOND AND RED ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further diamonds, no assay marks, size M / 6, 6.2g.

NO RESERVE - A DIAMOND AND RED ENAMEL RING set with a flat cut diamond in a border of red and white enamel, accented by further diamonds, no assay marks, size M / 6, 6.2g.

A GREEN ENAMEL AND DIAMOND RING set with a flat cut diamond in a border of green and white enamel, accented by further diamonds, no assay marks, size M / 6, 7.0g.

AN ANTIQUE MOONSTONE, ENAMEL AND DIAMOND RING in yellow gold, set with three cabochon moonstones within a scrolling border of blue enamel, accented by rose cut diamonds, no assay marks, size P / 7.5,

This ring features a central old mine cut diamond set into the center of a platinum star atop a cobalt blue enamel dome. The center stone is accented by rose cut diamonds set into the platinum star an

Classic Georgian era navette shape featuring a cluster of original foil backed rose cut diamonds within a frame of royal blue enamel, a border of gold dotted white enamel and an outer gold beaded edge

AN OPAL, ENAMEL, AND DIAMOND RING in 9ct gold, set with a round cabochon opal in a border of black enamel, accented by round brilliant cut diamonds, full British hallmarks, stamped 375, size O / 7, 2.

Lady's 18k white gold Roberto Coin blue enamel and diamond ring consisting of 25 pave-set round brilliant cut diamonds with a total weight of 0.25cts, graded F color, SI1 clarity. Finger size 6 3/4. G

A BLUE AND WHITE DIAMOND RING set with an irradiated blue diamond of 1.25 carats, accented by concentric borders set with round cut diamonds, with further diamonds to the trifurcated band, stamped 14K

A La Nouvelle Bague 18K yellow and white gold triple row domed ring. One row is yellow gold with a dark blue enamel dot. The middle row is white gold and bead set with 35 round brilliant cut diamonds,

La Nouvelle Bague Diamond, Enamel, 18k Gold Bracelet. Featuring full-cut diamonds weighing a total of approximately 0.50 cttw., accented by marbleized blue-yellow enamel, set in an 18k rose and white

18K yellow gold ring featuring a very fine oval faceted emerald, weighing approx 2.00 cts, bezel set, with blue enamel embellished with bright white, full cut diamonds, signed Faberge, Made in Germany

including an Affinity side hinge cuff bracelet pave set with blue and white diamonds, height 16mm, an Affinity ring set with caliber cut blue diamonds accented with white diamonds, height 10mm, a blue

A three stone diamond and enamel half hoop gypsy set ring, the slightly graduated round brilliant cut diamonds to tapering blue guilloche enamel band, stamped '18ct' , size P, 10.7 grams

A DIAMOND AND ENAMEL BROOCH, EARLY 20TH CENTURY in platinum and yellow gold, the oval body of openwork design, set with a central old cut diamond between panels of blue guilloche enamel, accented by f

Ladies' antique 14k yellow gold (untested) diamond cluster ring with blue and white enamel consisting of one round brilliant cut diamond measuring approximately 5.65mm with an estimated weight 0.65cts

A DIAMOND AND ENAMEL DRESS RING set with an old cut diamond of 0.27 carats, accented by geometric black enamel designs, no assay marks, size N / 6.5, 6.0g.