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Rare 18 carat gold antique five stone pink sapphire ring

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Rare 18 carat gold antique five stone pink sapphire ring

This antique ring is set with five natural pink sapphires. Hand made in 18 carat gold in the late Victorian era of the 1890’s, it is set with five natural pink sapphires that have not undergone any heat treatment. This ring would make a wonderful example of an antique engagement ring like no other.

Both ruby and sapphire come from the same gem family, corundum. Indeed the only difference between the two is colour. When corundum is any colour other than red, it is termed sapphire. This may apply to of course the well known blue sapphire, but also orange, green and purple sapphire to name a few. When corundum has more chromium as a trace element, this will cause the stone to be more red, and then named ruby. When it is pink, it is hard to differentiate the difference between a ruby and pink sapphire, however most gemmological labs around the world agree that it comes down to the eye and how we see pink compared to red.

A brief history on heat treating sapphires and rubies:

Sapphires and rubies have been heat treated for centuries to improve their colour and clarity and this is a worldwide accepted and safe practice. It should be clarified that a sapphire or ruby that has undergone some form of heat treatment is still a natural gemstone from the ground and is not a synthetic/man made stone and the treatment is completely stable. Lately on the market there is a technique of glass filling or lead filling stones which will improve the colour of a natural gemstone, however this treatment is very unstable and the stone may look worse in a few years.

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