Thank you very much for viewing. Ruby, the July birthstone, is the pinnacle of red color! This is a gem you can enjoy every day. ●Product Details Name: Natural Ruby Material: k18PG (Pink Gold) Necklace: Cut Azuki necklace, thickness approx. 0.55mm Length: 40cm total length, with adjustment clasp at 36.5cm Pendant: Approximately 6.2mm (length) X 5.7mm (width) X 3.9mm (thickness) Carat: 0.43ct Cut: Heart Shape Cut ●Other: Comes with a certificate of authenticity and a case. Natural stones may have minor imperfections (inclusions). Please be aware of this. Regarding the number of days until shipment, we will ship the next day if it does not coincide with the store's regular holidays, temporary closures, summer holidays, or year-end and New Year holidays. Please also check our website. Color: Red