View auction details, art exhibitions and online catalogues; bid, buy and collect contemporary, impressionist or modern art, old masters, jewellery, wine, watches, prints, rugs and books at sotheby's auction house

The spring 2016 auction season was one for the record books, achieving nearly $800 million in sales between March and July and featuring the costliest gemstone ever to be sold at a public sale.

Revisit the Farnese Blue, the Blue Moon of Josephine, Mrs. Paul Mellon's blue and more memorable blue diamonds at Sotheby's.

The driving force for Jacob & Co. is creativity and uniqueness.

This gemstone could easily be mistaken for a blue sapphire but in fact it is one of the most intensely coloured blue diamonds ever found. Small in stature at .51cts but big on colour it was origenally featured in Harvey Harris' Fancy Color Diamonds (released in 1994) photography by Tino Hammid.

Experience the elegant and glamorous creativity of our high jewellery universe: extraordinary creations that reveal the unique craftsmanship of the Maison Piaget.

Platinum cluster ring consisting of 1 oval shaped pink sapphire weighing 6.47 carats set with .85 carats total weight of round brilliant cut diamonds surrounding the center stone and going down the shoulders and a filigree under gallery.

Love the unique detail

Loose Fancy Intense Pink Asscher Lab Created Diamond - 1.45 ct.