4.71 ct Red Oval Ruby
Smooth, lustrous and evenly proportioned, the deep red colour of this gemstone would make a fabulous ring.
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.