A股培育钻石股集体下挫，力量钻石跌超7%

Group 1 - The A-share market's cultivated diamond sector experienced a collective decline, with notable drops in stocks such as Huanghe Xuanfeng, Huifeng Diamond, and Liliang Diamond, all falling over 7% [1] - Specific stock performance includes Huanghe Xuanfeng down 7.56% with a market cap of 9.172 billion, Huifeng Diamond down 7.03% with a market cap of 3.225 billion, and Liliang Diamond down 7.02% with a market cap of 10.2 billion [2] - Other stocks in the sector also saw declines, including Sifangda down 6.38% and World down 3.70%, indicating a broader trend of negative performance in the cultivated diamond market [1][2] Group 2 - The year-to-date performance shows Huanghe Xuanfeng with a gain of 52.88%, while Huifeng Diamond has decreased by 8.72% since the beginning of the year [2] - Liliang Diamond has a year-to-date increase of 8.27%, contrasting with the overall decline in the sector [2] - The overall market sentiment appears negative, as indicated by the significant drops in multiple stocks within the cultivated diamond sector [1][2]