I received this a few months ago, but I'm selling it because I can't find a thin WG or platinum necklace that matches it (⌒▽⌒) There is no WG hallmark, but there is a K10 hallmark, and it's a beautiful silver color♪ The small stone, possibly a diamond or sapphire, sparkles beautifully. I haven't used it since I received it because it doesn't have a chain. There are various gaps, so it seems like you can change the way it hangs, straight, diagonally, or downwards (⌒▽⌒) A heart-shaped pendant with a beautiful blue stone. - Color: Blue stone - Design: Heart-shaped pendant - Material: Silver-colored metal - Decoration: Combination of blue and clear stones Thank you for looking.