> For the complete documentation index, see [llms.txt](https://doc.cryptostone.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.cryptostone.org/crypto-stone/crypto-stone-wp-cn/bao-shi-shu-xing/26weight-shu-xing-de-shu-zi-hua.md).

# 26. Weight 属性

Weight 使用 CT，即克拉，作为所有宝石的共同单位。不过，每颗宝石的 Weight 值是随机生成的。

* Minimum Weight = 0.10 CT
* Maximum Weight = 200.00 CT
* Storage Unit = 0.01 CT

智能合约不会直接存储小数，而是以 0.01 CT 为单位存储整数值。

| 显示 Weight | 合约存储值 |
| --------- | ----- |
| 0.10 CT   | 10    |
| 1.25 CT   | 125   |
| 10.50 CT  | 1050  |
| 200.00 CT | 20000 |

Weight 并非以相同概率生成。正如现实中更大克拉的宝石更稀有一样，在 CryptoStone 中，更高 Weight 会以更低概率生成。

| Weight Range       | Probability | Score |
| ------------------ | ----------- | ----: |
| 0.10 \~ 1.99 CT    | 75.00%      |     0 |
| 2.00 \~ 4.99 CT    | 15.00%      |     5 |
| 5.00 \~ 9.99 CT    | 6.00%       |    10 |
| 10.00 \~ 49.99 CT  | 3.50%       |    16 |
| 50.00 \~ 200.00 CT | 0.50%       |    20 |

表中的 Score 并不是直接决定最终 Gem NFT 等级的值，而是用于计算 Rarity Score 与 Probability Rarity Index 的 Weight 属性分数。最终 Gem NFT 等级由 Pool Supply Score、Weight、Color、Clarity、Cut 综合计算，并统一为 Common、Rare、Epic、Legendary、Genesis 五个等级。


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