Rocks Forever Collection Jolie Engagement Ring 18ct White Gold Laboratory Grown Diamond Engagement Ring with a Round Brilliant Cut Centre Diamond Surrounded by a Diamond Halo. The 1.46ct centre diamond creates the most stunning ring which is accentuated by the halo of diamonds set in a round halo. The plain white gold shoulders allows the halo centrepiece to shine. Centre Diamond Carat Weight: 1.46ct Total Diamond Carat Weight: 1.66ct Colour:F Laboratory Grown Certified Diamond.