 The cushion-shaped sapphires weigh 8.97 and 8.93 carats. They are estimated at £400,000 - £600,000 | Bonhams London kicks off its autumn auction season with its Fine Jewellery sale on September 20, with a pair of Kashmir sapphires and a rare blue diamond. |  The Fancy Intense Blue oval-cut blue diamond weighs 3.81 carats and is accompanied by a GIA report. It is expected to sell for around $1,500,000 to $2,000,000. |
 A ruby and diamond ring by Van Cleef & Arpels |  A Spanish Colonial gold enamel and gem set pendant. |  Cartier emerald, diamond and onyx Panther ring |
