Certification provides an objective, professional assessment of a diamond’s quality through independent grading labs like GIA, IGI, or HRD. This detailed report verifies all four Cs (Cut, Colour, Clarity, Carat), giving buyers in the UK confidence in their purchase. Without a certificate, there’s a risk of overpaying or being misled about quality. First-time buyers should insist on ce... https://londonjewelsmagazine.wordpress.com/2025/11/20/diamond-buying-guide-uk-what-every-first-time-buyer-should-know/