Among 18K Kihei necklaces, this is a particularly popular 12-sided triple, brand new and unworn. Specifications: Approximately 7.0g, total length 46cm, width approximately 2.2mm. (Measured with home equipment. Please allow for minor discrepancies in decimal points due to differences in equipment.) This is genuine 18K gold purchased from a reputable jewelry store. ★【A copy of the product ID certificate issued at the time of purchase will be included, with personal information removed.】★ Hallmark of the Japan Mint and K18 stamp included ✴ "Is it authentic?" Unnecessary comments are not needed. I had it appraised at a pawn shop, so it is definitely genuine. Product Name: 12-sided triple Kihei necklace Material: 18K (K18) Yellow Gold Specifications: Weight approximately 7.0g, total length 46cm, width approximately 2.2mm Condition: Brand new, unused Accessories: Necklace case, copy of certificate Material...K18 Accessories...Box, Appraisal certificate Scratches/Discoloration...None Please note that purchases may be canceled for those with negative feedback or who are slow to confirm receipt. Please understand that this item may be removed if sold on another site. Returns and exchanges are not accepted to prevent switching, so please understand. 3N (No returns, no refunds, no exchanges) is appreciated. With the price of gold exceeding 20,000 yen, it may be a good investment. I will accept some price reductions, so feel free to comment. Please do not purchase if you are slow to confirm receipt. Price reduced to 170,000 yen until this weekend.