approx. 20 x 14 mm.

But when such items that people inherit from loved ones get massive appraisals in terms of monetary value from experts as ...

Quilpie Opals offers all three kinds of opal: the Lightning Ridge's black, Quilpie's own boulder, and Coober Pedy's light. There is also doublet or triplet opal, whereby a light opal is laminated onto ...

Forbes contributors publish independent expert analyses and insights. Anthony DeMarco reports on watches, jewels, lifestyle, art and culture ...