Three grades of silk are 1 reeled silk 2spun silk 3 nail silk.

There are three main silk produced 1-Reeled silk 2-Spun silk
3-Nail silk

Grade A Silk
Grade A silk is the highest quality silk produced. It is made from the longest silk fibers, resulting in a smooth and lustrous fabric. This type of silk is known for its durability and luxurious feel. Grade A silk is often used in high-end fashion products such as silk garments and accessories. The production process for Grade A silk involves careful sorting and selection of the silkworm cocoons to ensure only the best quality silk fibers are used.

Grade B Silk
Grade B silk is a mid-range quality silk that is slightly less refined than Grade A silk. It is made from slightly shorter silk fibers, which may result in a slightly less lustrous appearance compared to Grade A silk. Grade B silk is still a high-quality fabric and is commonly used in a variety of silk products such as bedding, scarves, and home decor items. The production process for Grade B silk still involves sorting and selecting the silkworm cocoons, but the standards are slightly less stringent compared to Grade A silk.

Grade C Silk
Grade C silk is the lowest quality silk produced. It is made from the shortest silk fibers, resulting in a fabric that is less smooth and lustrous compared to Grade A and Grade B silk. Grade C silk is often used in more affordable silk products such as linings for clothing, inexpensive scarves, and upholstery fabrics. The production process for Grade C silk may involve using a larger range of silk fibers, including those of lower quality, to produce a more cost-effective fabric.