Gold, ice valley, black diamond, blue diamond and gold diamond refer to products with the same style and different grades. The specific differences are as follows:

1. gold: refers to the basic version of the product, which is usually more affordable and suitable for novices.

2. Ice Valley: It is an upgraded version of gold products, made of high-quality materials, with a higher atmosphere and a slightly higher price than gold.

3. Black Diamond: It is an upgraded version of Ice Valley products, which is more upscale in material, very textured and expensive, and suitable for customers who pursue high-quality products.

4. Blue diamond: It is an upgraded version of black diamond products. Adding more pearls, diamonds and other jewelry elements, the products are more exquisite and beautiful, and the price is correspondingly higher.

5. Golden Diamond: It is the highest-grade product in the product series, using the highest-grade materials and jewelry elements, with extremely complicated production process, very luxurious appearance and very expensive price, and is positioned in the high-end market.