Hallmarked By : Assay Office London. Diamond Shape : Heart & Round Brilliant. Setting Type : Claw & Micro Pave. This ring is also available in following sizes H, H½, I, I½, J, J½, K, K½, L, L½, M, M½, N, N½, O, O½, P, P½.... More Variations of the product.This ring is also available in Platinum, 18K White, Yellow and Rose Gold. Thank You For Visit Us.. 0.40ct Natural Heart Diamond Halo Engagement Ring, Heavy White Gold" is in sale since Friday, August 14, 2020. This item is in the category "Jewellery & Watches\Fine Jewellery\Fine Rings\Diamond". The seller is "fine-diamonds" and is located in 88-90 Hatton Garden. This item can be shipped worldwide.