This brief article is a continuation of the detailed analysis we did on high-priced gems and their value. If you want more details on gemstones, read 20 Most Expensive Gemstones in the World.
The largest and most expensive ruby of its kind, a 55.22-carat specimen, sold at auction for $34.8 million on Thursday. Less than a year after being found in one of the company's mines in Mozambique ...
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