Have you noticed how many gold engagement rings have platinum settings? This is because platinum’s high density, strength, and resistance to metal erosion makes it the most ideal metal for securing valuable gems—provided, of course, the right platinum alloy is used
Due to the rarity and popularity of coloured diamonds, scientists were driven to experiment with ways of changing the colour of light-yellow and brown natural-mined diamonds.
While most modern jewellery is cast in a mould, stamped by a machine, or formed from wire, a few innovative individuals have been creating pieces from a thin, flat sheet, or strip of metal.
Did you know it is possible to create permanent colours and designs on metal without heat, plating, enameling, or caustic chemicals? This can be done on reactive metals, such as titanium and niobium, by running a controlled electric current through them while the metal is dipped in soapy water or touched with a wet sponge/wet brush. This is an electrolytic process called ‘anodizing.’
In the upcoming February issue of Jewellery Business, gemmologist and author Renée Newman explores the history of diamond mining in Canada and across the United States.
If you would like to include natural pearls in your inventory, you don’t have to pay millions or even thousands of dollars for them—but expect to pay a lot more than you would for cultured pearls of the same quality, size, and shape.
Rubies in North America are so rare that these stones used to be only available to collectors; however, thanks to a new mine in southwestern Greenland, North American rubies are now being sold in jewellery stores.
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.
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