Art Deco 7.55ct Old Euro Diamond Bracelet mourning ring I'm not sure exactly why

I'm not sure exactly why these represent a nightmare to a gambler (any suggestions welcome

It's a mixed cushion cut

possibly higher

often resulting in compositions that are asymmetrical or unnaturally elegant scenes - thanks wikipedia) with elaborate borders

cushion shaped panel of lapis lazuli

Art Deco 7.55ct Old Euro Diamond Bracelet mourning ring I'm not sure exactly whyDATE: Art Deco, c. 1920 Spectacular Art Deco diamond bracelet, circa 1920. Home to sixteen glistening old European cut diamonds totalling a little over 7. 5 carats. The stones rest in millegrain bezel settings (the six at the back with an extra platinum halo), with every second mount articulated, the ones in between sitting in the middle of a fine double bar with hand chased detailing to the side edges. Crafted in 18 karat white gold with platinum