This necklace is made of K18 pink gold and set with a 0.100 carat diamond. - Material: K18 Pink Gold - Stone Type: Diamond - Stone Weight: 0.100 carat - Model: MoonSetting DiaN (ML) Although it hasn't been used much in reality, it has been stored in a drawer at home, so please understand this before purchasing. m(__)m Images 4 and 6 are photos taken from the internet. If you would like the box, it will be an additional 600 yen due to shipping costs, but the surface of the inner box appears to be slightly scratched, so you might consider buying a new box at a store. Thank you for looking.