A cushion cut halo pendant places the main stone, with its rounded square outline, inside a ring of smaller brilliant cut lab grown diamonds. The halo adds sparkle around the edges of the cushion cut, creating a fuller impression than the centre stone alone. Platinum is the strongest precious metal for a halo pendant setting, holding the small halo stones securely over time. At Diamond Heaven, our lab grown diamonds are independently certified by IGI and our in-house gemmologist assesses each stone before setting. Every piece is hallmarked at the Birmingham Assay Office. We offer 0% APR finance, free lifetime aftercare and a 30-day returns policy.