4 sentences

1. 这件作品非常出众，成色很好。

   zhè jiàn zuò​pǐn fēi​cháng chū​zhòng, chéng​sè hěn hǎo.

   This piece of work is outstanding and the quality is excellent.

   Source: Dong Chinese Dictionary

2. 这批货物的成色只能算是中路。

   zhè pī huò​wù de chéng​sè zhǐ néng suàn​shì zhōng​lù.

   The quality of this batch of goods is only mediocre.

   Source: Dong Chinese Dictionary

3. 这块家传的金牌成色十足，非常珍贵。

   zhè kuài jiā​chuán de jīn​pái chéng​sè shí​zú, fēi​cháng zhēn​guì.

   This heirloom gold medal is of high purity and is very precious.

   Source: Dong Chinese Dictionary

4. 这种金饰品的成色很高，足有九成以上。

   zhè zhǒng jīn​shì​pǐn de chéng​sè hěn gāo, zú​yǒu jiǔ​chéng yǐ​shàng.

   The purity of this gold jewelry is very high, at over 90 percent.

   Source: Dong Chinese Dictionary