Today, I received a diamond from a jeweler, suspected to be CVD due to its unusually low price quote, which raised concerns. Upon examination with Cross-Polarized Filters (CPF), the strain pattern aligned with that of a natural diamond. (Reference: *Identifying Diamond Types and Laboratory-grown Diamonds with CPF (Cross-Polarized Filters), 3rd Edition* by Branko Deljanin,DusanSimic and Randy Eric). This book has been immensely helpful in distinguishing between natural and CVD diamonds, although identifying HPHT-treated natural diamonds remains an exception. Further observations under 365 nm and 254 nm UV light (with LW > SW response) as well as Deep UV confirmed the diamond’s natural origin. Additionally, the presence of rough natural skin on the cut and polished surface reinforced that it is indeed a natural diamond.