3.78 ct Red Cushion Ruby
Beautiful and vibrant red ruby gemstone in classic cushion shape. This gemstone would make a lovely ruby pendant or ring.
Availability:
One of a kind
Ref name:
EW274cR
In stock
DETAILS
Ref:
EW274cR
Carat:
3.78 ct
Cut:
Cushion
Colour:
Red
Treatment:
Heat
Origin:
Thailand
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After Care
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.
