Christie’s will auction a selection of modern and antique jewels in its Important Jewels sale on Nov. 26 in London.

Leading the sale is a 19th-century sapphire and diamond brooch estimated at $640,000 to $800,000. The 14 ct. piece boasts a rare sapphire from Kashmir that has no evidence of heating.

Other pieces of note: a 41 ct. Burmese sapphire and diamond pendant (est. $320,000–$480,000); a 23 ct. Ceylon sapphire and diamond ring (est. $320,000–$480,000); and a fancy colored diamond ring (est. $480,000–$800,000). 

JCK