1. They are all the same, there is no difference. The cumulative credit points of yellow diamonds and blue diamonds must be above 251 points. There is no difference between the two diamonds. Both parties to the transaction can receive corresponding evaluations for each successful order on Taobao. The buyer's credit accumulation is for each item in the order.

2. Different credit ratings. The credit rating of Taobao Huangguan is higher than that of Blue Crown. Taobao's credibility is divided into 20 levels: popularity (level 1-5), blue diamond (level 1-5), blue crown (level 1-5), and yellow crown (level 1-5). Among them, the red heart is the lowest level and the yellow crown is the highest level.

3. Blue diamonds and yellow diamonds are of similar levels. Yellow diamonds represent the reputation of buyers, while blue diamonds represent the reputation of sellers. It is not easy to compare the two reputations. The accumulated credit points of Yellow Diamond and Blue Diamond must be above 251 points. Both parties to the transaction can receive corresponding evaluations for each successful order on Taobao.

4. The blue diamond is the buyer’s credit rating, which is the same as the seller’s yellow diamond. The scoring rules for blue diamonds are the same as those for yellow diamonds. To get a blue diamond, your credit score must be above 251 points. Evaluations are divided into three categories: "good evaluation", "medium evaluation", and "negative evaluation". Each evaluation corresponds to one point.

5. This is the credibility level of the buyer and the credibility level of the seller. For example, yellow diamond is the credibility level of the buyer, while blue diamond is the credibility level of the seller.

6. These are the same level of reputation. Yellow diamonds are the reputation of buyers, and blue diamonds are the reputation of sellers. The two reputations are not easy to compare.