A spectacular range of extraordinary and accessible jewels can be found at Sotheby's locations all around the world during five jewellery auctions this November and December. Click ahead and explore a curated selection of 20 offerings at a variety of price points, including a pair of 18-karat gold, turquoise and diamond pendant-earclips by David Web ($15,000–20,000) and a historic Russian diamond choker from the 18th century (CHF2,950,000–4,950,000 / $3,000,000–5,000,000).