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4.18ct Vivid Red, Oval Ruby, No Heat, Winza (Tanzania) - 10.57 x 8.49 x 5.45mm

4.18ct Vivid Red, Oval Ruby, No Heat, Winza (Tanzania) - 10.57 x 8.49 x 5.45mm

SKUID: EW616
Stone Type:
Ruby
Weight:
4.18ct
Shape:
Oval
Colour:
Red
Colour Intensity:
Vivid
Treatment:
No Indication of Heating
Origin:
Winza (Tanzania)
Measurements:
10.57 x 8.49 x 5.45
Certificate:
GRS
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Care Instructions

Rubies, on the whole, are very durable stones and are safe to use in jewellery dips and ultra-sonic cleaners, however avoid using heat with untreated stones as this could affect the colour and future recertification. Avoid coating with borax before applying heat as borax may eat into rubies and sapphires.

Rubies are increasingly being treated by filling with glass and stones. Rubies that have been treated in this way may contain a very large percentage of glass. If you become aware that you or a customer has such a ruby, avoid direct heat, acids, ultrasonic and steam cleaners, knocks and blows.

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