This is a beautiful, delicate, minimalist style diamond ring in 10K white gold. I do not know the specs of the diamond but it appears to be approximately 1.5mm in diameter. The inside diameter of the ring is approximately 16.56mm, making this approximately a size 6 ring. Please note that the rhodium plating has worn in some areas so it will need to be re-plated for a whiter color than the buttery white of the 10K gold.