Lot 93

Natural cyan blue coloured zirconia weighing 5.03 carats. Oval size. This stone, pure with a 10 x 10 magnifying glass, has a vivid colour and great brilliance.
Dimensions: 11.05 x 8.75 x 4.92 mm.

Zircon is a natural stone, not to be confused with "zirconia" (cubic zirconium), which is a synthetic stone used to imitate diamond. Zirconia, although it has a similar name, is entirely natural and owes its low cost to its unjustified bad reputation.