Location: BRG-Greenwich
Item #: 184031
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Platinum brooch. This amazing vintage platinum brooch is a circular profile, displyed throughout with milgrain edged foliate and shamrock patterning and set with alternating round faceted diamonds (approximately 1.40 TCW) and calibre cut synthetic* blue sapphires.
*The use of synthetic colored stones, especially synthetic ruby, sapphire and emerald is extraordinarily common in Art Deco 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, tested platinum
Dimensions: 1 7/16" diameter
Weight: 6.8 gross dwt
Condition: Slightly dented on edge, missing two blue stones, minor nicks, commensurate with age and use - see photos
Provenance: The Estate of a Lady, Newport, RI
| Bid | Time Stamp | |
| 925.00 | 11/15/2023 9:19 PM | |
| 900.00 | 11/15/2023 9:19 PM | |
| 900.00 | 11/15/2023 9:19 PM | |
| 875.00 | 11/15/2023 9:07 PM | |
| 850.00 | 11/15/2023 9:07 PM | |
| 850.00 | 11/15/2023 9:07 PM | |
| 775.00 | 11/15/2023 9:06 PM | |
| 725.00 | 11/15/2023 8:41 PM | |
| 675.00 | 11/15/2023 6:52 PM | |
| 625.00 | 11/15/2023 6:52 PM | |
| 600.00 | 11/15/2023 6:52 PM | |
| 535.00 | 11/15/2023 11:39 AM | |
| 510.00 | 11/15/2023 11:39 AM | |
| 500.00 | 11/14/2023 3:43 PM | |
