The first step in determining whether a pair of Dolce & Gabbana sunglasses is real is to check for authentic packaging in a branded retail box, with the exact logo and official font. The label should be white on black, or black on white, and the box should include a Dolce & Gabbana guarantee booklet.
Both "Dolce & Gabbana" and "D&G" come from the same company, with D&G products being a lower tier brand. Labels for authentic Dolce & Gabbana merchandise will never contain both logos or both names. Serial numbers on genuine products feature numerals made up of many tiny dots or circles. Solid print numerals indicate a fake. While D&G products feature a hologram label, Dolce & Gabbana products do not, with the exception of some of the line's sunglasses.