Material: Akoya Pearl, 18K gold, and Diamond Akoya Pearl saltwater cultured pearl Size of pearl: 8.5-9.0mm, or 7.5-8.0mm Weight of Diamonds: 1 diamond approx. 0.048 carats Length of Chain: 45cm (Adjustable) This is a welfare model, some pearls may have growth marks. But it does not affect the beauty of the necklace when worn. Please do not buy if you mind. Handcrafted Lifetime warranty