Platinum and diamond brooch. This breathtaking vintage platinum brooch has a beautiful, circular profile, set with graduated, round faceted diamonds around the perimeter and set against the graduated diamonds is a thin row of green, calibre cut synthetic* emeralds, channel set. Draping through and around the circle is a garland of festooning bows and foliate patterning, also set with round faceted diamonds. Suspended from the garland is a drop of two large graduated round faceted diamonds, bezel set. The entire approximate weight for the round faceted diamonds is approximately 2.01 TCW and the pin is finished with a milgrained edging. The diamonds are near colorless and SI clarity.
*The use of synthetic colored stones, especially synthetic ruby, sapphire and emerald is extraordinarily common in Art Deco and vintage jewelry, especially in the calibre cut stones and the best explanation as to why comes from GIA's article on Art Deco jewelry in Gems and Gemology, and to quote: "The use of flame fusion synthetic corundum was also widespread. We do not know whether such synthetics were originally used to deceive, to increase the ease of matching size or color or perhaps simply because of the limited gem identification techniques available at that time". Regardless, the use of these stones should not undercut the importance of the jewelry from this period.
Marks: None, pin tests platinum and removable safety clutch is silverplate
Dimensions: 1 3/16" diameter x 1 1/2" long
Weight: 7.0 gross dwt (minus plated safety clutch)
Conditions: Surface scratches, nicks, chips, abrasions; four of the green calibre cut stones are missing
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