Aventurine lots are available at auction on LiveAuctioneers. singular Aventurine works. This unique Aventurine selection offers an extensive variety of remarkable items such as Necklaces & Pendants, Loose Stones & Beads, Earrings, Rings, Brooches & Pins, and more. If you’re looking for more alternatives, many shoppers also enjoy exploring pieces in other trending materials/ techniques such as gold, silver, diamond, and bronze.