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
