1-Carat Diamond Necklace Size: 0.335 carats Color: E Clarity: VVS-1 Cut: Excellent Chain: 18kYG 42cm, with one adjuster K18 0.33 Engraving on the back Comes with a grading report (certificate) issued by the Central Gemological Laboratory (CGL), a leading and highly accurate gemological institution in Japan. I ordered this from a natural diamond specialty store, focusing on the grade. It's simple, so it complements brand jewelry like Cartier and Van Cleef & Arpels, and it's an elegant solitaire diamond pendant with a presence. I think it's rare to find a diamond necklace of this grade for sale. Please compare it with others. I'm selling this one because I made a larger size. *** Color E The second-highest color grade; colorless when viewed from directly above and from the side. Clarity VVS1 Inclusions are extremely difficult to see from the top even for experienced gemologists under 10x magnification. Cut Excellent Possesses a very bright and strong brilliance, with the highest level of proportions and almost no pattern defects. *** Due to rising gold prices and the weak yen, a Tiffany's By the Yard 0.3ct (mid-grade) currently costs over 600,000 yen. The price will increase incrementally if you upgrade the diamond grade from there. It has strong brilliance, and the 4Cs are higher than those of high-end brands. Recommended for those who prioritize the 4Cs and quality, regardless of brand. TIFFANYFLAGSjproducts Avaron Star Jewelry 4℃ AHKAH VENDOME AOYAMA Vendome Aoyama Kitani Precious Metals Yamanashi Jewelry Azuki chain K18yg 18k 18yg Color: Gold系 (Gold-toned) Material: K18 (18k Yellow Gold) Decoration: Diamond Accessories: Certificate Scratches/Discoloration: None