So, how are these pearls grown? And what makes them so expensive? More from Retail South Sea pearls are the largest cultured-pearl variety, sometimes reaching over 20 millimeters in diameter.

larger pearls are rarer and more valuable than smaller pearls of the same type. Shape: Round is the most difficult shape to culture, making it the rarest cultured pearl shape and—if all other factors ...

Natural pearls vary in size, with those exceeding 10 millimetres being rare and particularly valuable. Pearls commonly found in jewellery are typically round and highly valued, especially if they ...

A ‘unique’ collection of ‘pearl caves’ containing archaeological artefacts has been found in an ancient tunnel. The pearls are a type of ‘speleothem’ – mineral deposits that are ...

Produced by oysters in oceans or mussels in rivers, pearls have been coveted by humans since the Bronze Age. So much so that it is believed the exploitation of freshwater pearls was a factor in the ...

Sharjah24: The Emirati Goldsmiths Platform, an initiative of the Sharjah Chamber of Commerce and Industry (SCCI) aimed at supporting young Emirati talents in the gold and jewellery design industry, is ...