102 carat diamond makes $20.9m

A flawless 102-carat oval diamond made $20.9m at auction on October 5 in Hong Kong at Sotheby's. The egg-shaped stone of 102.39 carats, D colour, Type IIA was sold without reserve. The gem was cut from a 271-carat rough stone discovered in Ontario's Victor Mine, where production ceased last year. Only seven other white diamonds of more than 100 carats have appeared at auction. Bidding starts at $1HKD or $.13. In November 2017, the largest diamond ever at auction, 163.41 carats, sold in Geneva for more than $33.8m.

Louis Vuitton - Stellar Times

Emerald, sapphire, diamond, black opal and white-gold Céleste ring.

Louis Vuitton is tapping into the interest in celestial themes with its new high-jewellery collection called Stellar Times.

Oval-cut spessarite garnet, diamond, platinum and yellow-gold cocktail ring.

Audemars Piguet Royal Oak Concept Flying Tourbillion

Audemars Piguet Royal Oak Concept Flying Tourbillion isn't for everybody. Created by Italian designer Carolina Bucci, the watch is priced at 145k Swiss Francs ($157k) isn’t your average luxury timepiece. The watch comes with a 72-hour power reserve, alligator straps, and is set for a limited production run.