Set in a stunning vintage inspired mount this renaissance ring features a colour changing lab grown alexandrite stone in its centre. Handcrafted in 18ct white gold the decorative band holds ten round cut natural diamonds; five on either side of the gemstone with a further two diamonds positioned inside each of the four prongs. Take a look at alexandrite in natural light and you’ll see intense flashes of emerald green mixed with hints of blue. Observe alexandrite in incandescent light and the stone will change to a deep purple. Unsurprisingly this unique colour changing property makes alexandrite one of the rarest and most sought after gemstones on the market.Single 1.75ct lab grown alexandrite 18 diamonds 1-2/K-M totalling 0.3ct. Round cut. Available in sizes A-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: 2.5 mm (0.1 in). Material: 18ct White Gold. Total metal weight: 4.1 gr. 1 round cut lab grown alexandrite (7 x 7 mm) = 1.75 ct. 18 round cut diamonds (K colour I3 clarity) = 0.3 ct total. Colour: Colour Changing. Stone cut: Round Cut. Anniversary: 55th Anniversary. Birthstone: June.