Top Guidelines Of engagement ring
鑽石分為一型和二型兩種,這主要是根據它是否含有N元素:一型含;二型不含。而藍色的鑽石是二B型的,是半導體。In 1886, Tiffany introduced the engagement ring as we realize it nowadays. We’re very pleased to create on our legacy as being the chief in diamond traceability with responsibly sourced, expert