Indulge in the colour changing properties of this lab grown alexandrite ring. A solid 18ct gold split shank elegantly supports this large 5ct lab grown alexandrite. Precision cut into a pear shape, the stone is almost internally flawless and boasts terrific colour qualities. This incredibly popular design of ring sits proudly as one of the most beautiful items of the collection.Single 5ct lab grown alexandrite. Pear cut. Available from sizes A to Z including half sizes.Lab grown gemstones hold the same optical and physical properties as their natural counterparts and offer a superlative cut, colour and clarity. Size: 13 mm (0.51 in). Material: 18ct Gold. Total metal weight: 2.8 gr. 1 pear cut lab grown alexandrite (9 x 13 mm) = 5 ct. Colour: Colour Changing. Stone cut: Pear Cut. Anniversary: 55th Anniversary. Birthstone: June.