Description De Beers - A Diamond Hourglass containing a cascade of over 2000 natural rough diamonds. De Beers - A Diamond Hourglass containing a cascade of over 2000 natural rough diamonds, weighing approximately 36 carats in total, suspended in a silicone fluid, contained in a gold plated and acrylic reversible timer, duration approximately ten minutes, with stand, display case and booklet, height of hourglass 14.8cm, Signed Louis Glick & Company and De Beers, the stand is illuminated with a soft touch sensor highlighting the sparkle of the diamonds.