Gem Stones Price Guide Archives - Antique Brooches

Aventurine Information and History

Antique Brooches — Tue, 06 Feb 2024 13:28:38 +0000

Aventurine Brooches. Aventurine is a form of quartz which is mostly found in a green color. However, it can also be found in orange, brown, yellow, blue, or grey. It wasn’t until the 18th century that aventurine got it’s name. Before that it was known as the stone of the Amazonians and dates back centuries. Many different cultures have used the stone in jewelry.

Below are some examples and price guides of aventurine brooches including an leaf shaped brooch and a beetle brooch.

AVENTURINE QUARTZ, CULTURED PEARL AND DIAMOND LEAF BROOCH
The aventurine quartz carved to depict a leaf, decorated with 5.5mm-6.5mm cultured pearls and a brilliant-cut diamond, length 5.1cm

Sold for £892.50 inc. premium at Bonhams in 2021

Duck-shaped carved aventurine quartz, round ruby,18k yellow gold (French marks), signed Cartier Paris maker’s mark (Cartier, Société Anonyme), numbered

Size/Dimensions: 4.2 x 2.6 cm
Gross weight: 12.9 grams

Sold for EUR 10,080 at Christie’s in 2023

A beetle brooch set with aventurine quartz, in a naturalistic design with central aventurine quartz cabochon, with brooch pin to the reverse, stamped ‘750’, measuring 34 x 25mm. Total weight 6.8g.

Sold for £120 at Dawsons Auctioneers in 2023

A VINTAGE AUSTRIAN AVENTURINE QUARTZ, ROCK CRYSTAL, GREEN TOURMALINE AND DIAMOND FLOWER BROOCH in 14ct yellow gold, designed as a floral bouquet, the flowers formed of carved aventurine quartz and frosted rock crystal, the rock crystal flowers set to the centre with a round cut green tourmaline, the aventurine quartz set with a round brilliant cut diamond, the stems accented by rose cut diamonds, Austrian assay marks, 8.5cm, 28.3g.

Sold for £500 at Elmwood’s in 2023

Seaman Schepps Gold and Fluted Aventurine Quartz Clip-Brooch
18 kt., one fluted aventurine quartz ap. 50.0 x 49.0 mm., signed Seaman Schepps, with maker’s mark.

Sold for US$1,800 at Doyle New York in 2023

The post Aventurine Information and History appeared first on Antique Brooches.

Art Deco Diamond and Sapphire Brooches

Antique Brooches — Mon, 11 Jun 2018 07:52:25 +0000

Price guide to Art Deco diamond and sapphire brooches. The combination of sapphires and diamonds made for striking jewelry during the Art Deco era. Designers such as Cartier and Van Cleef & Arpels would often incorporate these gemstones into their designs.

The post Art Deco Diamond and Sapphire Brooches appeared first on Antique Brooches.

Art Deco Diamond Brooches Price Guide

Antique Brooches — Sun, 10 Jun 2018 11:48:35 +0000

Price guide to antique Art Deco diamond brooches. Art Deco diamond brooches epitomize the glamorous era of the 1920’s and 1930’s. Brooches similar to those below were often worn by Royalty and other distinguished people of the era including Wallace Simpson.

The post Art Deco Diamond Brooches Price Guide appeared first on Antique Brooches.

Agate Flower Brooches Price Guide

Antique Brooches — Thu, 07 Jun 2018 07:23:42 +0000

Price guide to antique and vintage agate flower brooches. Agate is an excellent material for carving flowers. The patterns within agate allow for natural looking petals and leaves.

The post Agate Flower Brooches Price Guide appeared first on Antique Brooches.

Agate Cameo Brooches Price Guide

Antique Brooches — Mon, 04 Jun 2018 16:57:12 +0000

Price guide to antique and vintage agate cameo brooches. Agate is one of the most common materials used in the art of hardstone carving, and has been recovered at a number of ancient sites, indicating its widespread use in the ancient world; for example, archaeological recovery at the Knossos site on Crete illustrates its role in Bronze Age Minoan culture. Reference: Wikipedia

The post Agate Cameo Brooches Price Guide appeared first on Antique Brooches.

Pearl and Diamond Brooches

Antique Brooches — Sun, 03 Jun 2018 08:26:48 +0000

Price guide to pearl and diamond brooches. Pearls and diamonds compliment each other perfectly and has been a popular combination for centuries.

The post Pearl and Diamond Brooches appeared first on Antique Brooches.

Garnet and Diamond Brooches

Antique Brooches — Wed, 16 May 2018 15:06:57 +0000

Price guide to antique and vintage garnet and diamond brooches. Diamonds are the perfect gemstone to highlight the beauty of garnets.

The post Garnet and Diamond Brooches appeared first on Antique Brooches.

Garnet and Pearl Brooches

Antique Brooches — Tue, 15 May 2018 09:11:46 +0000

Price guide to antique and vintage garnet and pearl brooches. The contrast of pearls with garnet, whether deep red or green, make beautiful brooch designs.

The post Garnet and Pearl Brooches appeared first on Antique Brooches.

Opal Dragonfly Brooches

Antique Brooches — Mon, 14 May 2018 08:11:27 +0000

Price guide to antique and vintage opal dragonfly brooches. Dragonflies are beautiful insects which have inspired many jewelry makers for centuries. Opals, with their beautiful play of colors, make excellent gemstones for dragonfly brooches.

The post Opal Dragonfly Brooches appeared first on Antique Brooches.

Victorian Opal and Diamond Brooches

Antique Brooches — Sun, 13 May 2018 18:38:01 +0000

Price guide to Victorian opal and diamond brooches. Diamonds are the perfect accompaniment for opals highlighting the delicate color of the opal. Queen Victoria apparently wore opals throughout her reign despite bad superstitions about the gemstone.

The post Victorian Opal and Diamond Brooches appeared first on Antique Brooches.