4 Carat Brooches

Deco Platinum Emerald Brooches are unusual as Aquamarine Deco brooches are. During this period, Sapphires and Rubies were king and Emeralds an...

Open frame iconic diamond pin 2ct natural round diamonds H-color vs-2 clarity 14kt white gold 46 x 30mm $6,000.00 appraisal to accompany

A sweet pin of a two-flower bouquet. They feature 0.75 carats of round brilliant cut diamonds set in 18k white and rose gold. Small enough to be worn daily and with multiple outfits....

Tiffany & Co. Large Size Paloma Picasso Diamond Heart brooch 18k Yellow Gold. Set with 18 round shape diamonds totaling .72cts. 18 round diamonds F VS approx. total weight .72cts ...

18ct Yellow Gold Diamond Safety Pin Brooch This chic 18ct yellow gold brooch is expertly crafted in the shape of a safety pin, offering a mo...

Art Deco platinum antique emerald and diamond bar brooch. The center stone is a cushion cut emerald. There is an estimated 4.25 carat total weight of a white, eye clean, old European...

A large antique 14K Palladium Gold brooch. The brooch is made in floral design representing a bouquet with flowers. The brooch is encrusted with Diamonds and Sapphire stones. Marked ...

A fabulous authentic Tiffany & Co brooch designed by Paloma Picasso showcasing a 2ct of the finest round brilliant cut diamonds set in platinum. The frame is designed in 18k yellow g...

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...

This exquisite piece features colorful sapphires and diamonds, adding elegance and sparkle to your look. A true work of art, this brooch features superb gems totaling 5.5 carats, car...

One beautiful diamond brooch from 1950's. Set with 9.00cts of diamonds. Excellent. condition. 1.5 inches long.

This Oscar Heyman 18kt yellow gold brooch contains 2.55cts of calibré rubies and 3.95cts round diamonds (F-G/VS+). The rubies are cut by hand in Oscar Heyman's Madison Avenue workshop by the lapidary. The diamonds are bead set. Azures (cut outs) behind the gemstones and diamonds allow maximum light to shine through this piece, illustrating the finest principles of jewelry manufacturing. It is stamped with the makers mark, 18K, and serial number 74869. Comes in an Oscar Heyman brooch box. This brooch measures 49mm x 30mm x 11mm. It has a standard rollover safety clasp. It is light enough to wear on a shirt without pulling. Bows are a timeless ornament and this gemstone-encrusted version even more so! Oscar Heyman was founded in 1912 and became known as the 'Jewelers' Jeweler'® for creating pieces for Van Cleef & Arpels, Cartier, and Tiffany & Co. Oscar Heyman jewelry...