Two 18k heart-shaped charms. They have a hollow design. The weight is approximately 0.9g. I measured it with a household scale, so there may be some slight error, but I measured it several times. I bought it as a pendant, but the chain broke, and I haven't used it since, just kept it in storage. The larger one has an 18k hallmark, but the smaller one doesn't. However, I bought them as a set, so I believe both are 18k. - Shape: Heart-shaped - Color: Gold - Size: Set of 2, large and small Thank you for looking.