This diamond color comparison card is designed for accurate color grading and identification of gemstones. The foldable paper card features precise color slots, making it easy to compare and grade the color of diamonds and other jewelry. Ideal for jewelers and gemologists, it ensures reliable and consistent results in gemstone evaluation. Features -Color:White -Material:Paper -Size:12.50X9.30X0.10cm/4.91X3.65X0.04in -Diamond paper : diamond paper is used alongside the diamond color grading card to achieve precise color evaluation, aiding jewelers in making accurate assessments -Portable foldable design: convenient foldable structure allows easy transportation, enabling diamond color grading anytime, anywhere -Antireflective material: special paper reduces light reflection interference, providing clear visual assessment during color comparison -Easy to operate: just place the diamond or gemstone into the slot on the paper card and compare it with the color grading paper to quickly identify color differences -Durable cardboard construction: made with durable materials, resistant to wear and tear, ensuring extended list: Color Cards