3.5 Carat Brooches

The large flower brooch features 12.80 carats of full cut and baguette diamonds. Set in platinum and completed by a pin stem and catch, along with a safety chain. This spectacular b...

Item Details: Metal Type: Platinum [Hallmarked, and Tested] Weight: 5.9grams Diamond Details: Center Diamond is .45ct, G color and VS clarity. Side diamonds add up to a total of .55...

This exquisite 18K yellow and white gold brooch is a true masterpiece of elegance and craftsmanship, featuring a dazzling floral design that radiates both sophistication and contempo...

Classic platinum open circa and bow brooch, by Cartier, circa 1950s. The brooch is set with approximately 5ctw in G/VS baguette diamonds. Measures 1.75" in diameter. Marked Cartier ...

Lovely Delicate Edwardian Amythest, Diamond and Pearl Brooch from the early 1900's. Unsigned but high quality American manufacture. Platinum t...

This exquisite Original Art Deco Platinum Diamond Brooch features a striking combination of Old European Cut, Single Cut, and Baguette Cut diamonds, totaling approximately 4 carats i...

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...

Exquisitely handcrafted in platinum, this elongated oval Art Deco brooch is a true work of art. The brooch features an intricate openwork design, with three stunning ovals at the cen...

This beautiful Vintage 1960s diamond brooch pin is crafted in solid platinum. Displaying a delicate swirl design with exquisite details and except...

Art Deco Platinum Diamond Brooch Circa 1930's Purchased From a Renowned Hollywood and Broadway Actors Family One Round Brilliant Cut...

Beautiful 12.00 ct. good quality, white, and bright diamond rounds in this handmade 18k yellow gold and platinum brooch.

An Edwardian pearl and diamond brooch on offer at Bentley & Skinner, Jewellers by Royal Appointment to His Majesty King Charles III. The br...