The artistry of a Windsor, Ont.,-based ring-maker took centre stage at the 2019-20 NBA season opener in Toronto on Tuesday night with the presentation of the Toronto Raptors’ 2019 world championship rings.
I’m curious about how jewellery merchants of long ago could buy diamonds and know for certain they were purchasing the ‘real thing’ and not another variety of cut, colourless gemstone. How often did they worry about that?
Using the 4Cs (colour, clarity, cut, and carat weight) to explain diamond pricing was developed by the Gemological Institute of America (GIA) in the 1950s. At that time, cloudy diamonds were considered ‘industrial-grade’ stones and were not set in jewellery.