Distinguishing a pure Kanjeevaram requires checking key details. Gently scratch the zari; authentic, gold-coated silver thread will reveal a reddish or yellowish metallic core, unlike the white plastic of fakes. The saree should feel substantial and heavy, with a smooth, firm texture and a natural luminosity, not a synthetic gloss. Critically, examine where the body meets the pallu; a genuine Korvai-weave saree has a seamless, strong join, not a stitched or glued one. Always look for the official Silk Mark label and be skeptical of low prices, as true craftsmanship is an investment.