The jewelry color grading card is an essential tool for professionals in the jewelry industry. Its paper construction and clear color slots allow for precise color comparison and grading. This card is Ideal for use in jewelry stores, gemological laboratories, and during gemstone appraisals, providing accurate color identification. Features -Color:White -Material:Paper -Size:12.50X9.30X0.10cm/4.91X3.65X0.04in -Accurate color grading tool: by pairing diamond paper with grading card, jewelers can perform precise evaluations of for reliable -Travelfriendly design: compact and foldable design makes it easy to carry, Ideal for professionals conducting evaluations outside the office -Optimized visual clarity: paper minimizes glare, ensuring accurate color during gemstone grading -Convenient color comparison: to determine the color of a diamond or gemstone, insert it into the slot of the grading card and match it against the grading paper for fast and accurate results -Material: crafted from durable cardboard, offering extended use without frequent replacements, saving time and resources Package list: 6 Color Cards