Our K18 jewelry is made entirely of K18 material, not K18 plating. Carefully handcrafted in a reliable domestic factory. We manufacture in the same factory that supplies major department stores, and we are confident in our quality. ＿＿＿ This is a classic screw chain necklace. Screw chains are characterized by their high density, with many links connected, creating a strong presence. A luxurious amount of links are used. Because the faces all face the same direction, it has a sense of weight, and the movement creates a beautiful shine. It has an elegant shine, so it looks great even when worn simply without a pendant. It's very versatile and convenient to have one. Made in Japan for peace of mind. The high precision of the cut and the strength are characteristics of domestically produced K18 jewelry. The "K18" hallmark is only permitted for jewelry made in Japan. (Overseas products are hallmarked "Au750") K18 jewelry does not fade, and you can wear it in the bath or while doing water work! Safe for those with allergies. ＿＿＿ ◆Detail ・Length: 37cm・40cm (2-way) ・Type: Screw chain ・Spring ring diameter: Approximately 5mm ・18k hallmark plate length: Approximately 7mm ・18k hallmark plate width (widest part): Approximately 3mm ・Weight: Approximately 0.79g ＿＿＿ ◇Please see the profile for seller information and shipping information♪ 18K 18k gold K18 k18 10K 10KYG 14K 18KYG 14KYG earrings 18K earrings k18 accessories 18k accessories necklace necklace top yellow gold K18 18k gold 18K 750 YG PG WG Christmas present date formal office school observation ceremony graduation ceremony entrance ceremony agate ete hallmark with hallmark new