Art Deco 4.44 Carat Diamond and Cabochon Sapphire Platinum Brooch

Brooch in platinum, dog head hallmark, and 18 karat white gold, eagle head hallmark. Long antique barrette brooch, it is decorated in the center of a...

Centering an oval shaped sapphire cabochon weighing approximately 1.29 carats total. Transparent medium to dark blue in color - bezel set with a pierced halo surround. Comprised of o...

This timeless antique diamond and sapphire pin brooch is crafted in solid platinum. Displaying of geometric art deco patterns set in round-cut, square-cut, and triangular-cut diamonds weighing approx. 3.50 carats, graded H-I color, and VS2-SI clarity. Offset by two adjacent round-cut and 12 square cut genuine royal blue sapphires weighing approx. 1.25 carats. Pin brooch weighs 10.6 grams and measures 57mm wide x 15mm long. Secures with a trombone clasp...

A magnificent, fine and impressive, large antique 1930s 8.13 carat diamond and platinum Art Deco brooch; part of our diverse antique jewelry and estate jewelry collections This magnificent, fine and impressive antique diamond brooch has been crafted in platinum. This geometric Art Deco brooch is ornamented to the center with a feature bezel set 1.30Ct Old European cut diamond. The central diamond is encompassed with horizontal pales embellished with thirty-eight pavé set Old European cut diamonds, accented to either end with seven further diamonds within rounded segments. This symmetrical millegrain decorated frame bears four impressive Art Deco swept collar motifs emanating from the central design, each incorporating four swept rays, ornamented with a total of twenty-six pavé cut diamonds. This large and intricate brooch features a paralleling oval border conjoining the aforementioned four cardinal swept motifs, in addition to a rectangular cut cornered border to the outer edge. These impressive borders are ornamented with forty-four pavé set Old European cut diamonds, completing the design. The brooch secures to the reverse with a hinged pin and catch. This Art Deco brooch has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum. The antique 1930s Art Deco brooch in platinum is supplied with an independent diamond grading certificate for the feature diamond, in addition to an independent diamond grading report card for the supporting stones. Condition This magnificent and large antique brooch...

Flower brooch is designed as a dynamically petaled pansy Centering a bezel set old European cut diamond weighing approximately 0.40 carat; K color with SI clarity Surrounded by gem...

A stunning, fine and impressive Art Deco 2.16 carat diamond and platinum brooch; part of our diverse antique jewelry and estate jewelry collections. This stunning, fine and impressive diamond brooch has been crafted in platinum and in the Art Deco style. The pierced decorated, subtly convex rectangular design is ornamented with a central feature 0.41ct Old European round cut diamond, within a square shaped platinum setting. The feature diamond is flanked on either side by two perpendicular collet set eight cut diamonds. The symmetrical millegrain bordered setting is further ornamented with a total of fifty-eight impressive eight cut diamonds. The stunning antique brooch secures to the reverse with a hinged pin and push fit fastening. This 1920s platinum diamond brooch...