E. M. Gattle & Co. 1920s Art Deco Diamond and Platinum Brooch

An Art Deco platinum ring with emerald and diamonds. The ring centers on an emerald-cut emerald with an approximate weight of 3.37 carats, f...

This diamond crescent brooch by Tiffany & Co. New York dates from circa 1890-1900. The delicate crescent is set with 21 old European and old mine-cut diamonds mounted in platinum-topped gold. Set with fine, well-cut diamonds in a minimum of platinum and gold, this heavenly crescent was divinely shaped and executed by Tiffany & Co. designers and artisans. Product Details: Item #: BO-21317 Artist: Tiffany & Co. Country: United States Circa: 1890-1900 Dimensions: 2.75" length, 1" width. Materials: 21 old European and old mine-cut diamonds (approximate total weight 9.20 carats): Platinum-topped 18K gold mount Signed: Tiffany & Co. Macklowe Gallery Curator's Notes: Throughout the 19th century, British astronomers made many advances, building on the enormous base of precise observations provided to them by their predecessors in the 1700s. Using the new technique of spectroscopy, they worked to determine the composition of heavenly bodies, while breakthroughs in understanding the geology of the earth -many made by passionate amateur scientists as diverse as surveyors and Anglican clergy - helped them discover the facts about the nature of the moon and newly discovered planets. It was in fact an Anglican priest who first advanced his well-supported theory that the earth was indeed more than a billion years old. Astonishing early imaging of the moon, as well as the appearance of the Great Comets of 1843 and 1882 that remained for months burning in the sky above England, helped stoke popular fascination with heavenly bodies. Star, crescent, sunburst and comet jewelry...

An Antique 18 karat gold and platinum brooch with demantoid garnets, diamonds and ruby. The brooch has 38 demantoid garnets with an approximate total weight of 1.10 carats, 34 diamon...

A pair of French Art Deco platinum and 18 karat gold cuff links with diamond, onyx and coral. The cuff links have 56 rose-cut diamonds wi...

Dating from circa 1997, this 18K gold Tiffany & Co. bow brooch is set with over 7 carats of diamonds. It is designed as a highly three dimensional bow of five loops pavé-set througho...

Created in 1968-1969, this Tiffany & Co. brooch is composed of bi-color 18K gold, lapis, and diamonds. It is designed as blue blossom or berry set with lapis lazuli cabochons, surmou...

Item Details: Metal Type: Platinum with Gold Pin [Hallmarked, and Tested] Weight: 5.8 grams Diamond Details: .75ct total weight, Natural Diamonds, Old European Brilliant Cut, F-G Col...

Stunning Platinum Art Deco Filigree Brooch with 9 Diamonds. Totaling .40 Carats. Color F/G Clarity VS/SI1. Matching Ring is also available. Th...

1920's Art Deco Diamond and Onyx Circle Brooch in Platinum Great For a Formal Occasion or a Casual Wear Fourteen Old Mine Cut Diamonds Weighing .45 Carats Approximately Thirty Fre...

An outstanding piece of Art Deco elegance, this brooch has a central modified emerald cut aquamarine of approx. 9 carats and old mine cut diamonds measuring approx 4 carats. The ston...

1920s Art Deco Tiffany & Co. Golfer Pin Brooch - Platinum, Diamonds Features 1.0 cttw Single cut Round Diamonds and French cut Baguette Natural Blue Sapphire...

An exceptional and authentic Art Deco brooch. Featuring the quintessential vintage European cuts. Featuring some of the purest white in color antique cuts we have come across and unique shape stones flanking the center stone. A true antique one of one. Year: 1920s Item Details: Metal Type: Platinum [Hallmarked, and Tested] Weight: 8.6 grams Diamond Details: Weight: 5.50ct, total weight (Center Diamond weighs .65ct) (4 Larger flanking diamonds...