价格大跳水！1克拉大钻石，只要3500元！人造钻石占半壁江山？

Group 1 - The core point of the article highlights that lab-grown diamonds are disrupting the traditional diamond market, with prices significantly dropping due to advancements in technology and increased production capacity, particularly from China [1][4] - By 2025, it is projected that over 40% of diamonds sold globally will be lab-grown, indicating a shift from niche to mainstream acceptance [1][9] - The rapid decline in prices is attributed to China's dominance in production, accounting for 63% of global capacity, and the efficient production techniques that have emerged [4][9] Group 2 - The two main production methods for lab-grown diamonds are High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD), each with distinct processes and conditions [5][6] - HPHT simulates natural diamond formation under extreme conditions, while CVD allows for diamond growth in a vacuum chamber, leading to different growth rates and purity control [5][6][8] - Continuous improvements in these technologies have drastically increased production efficiency and reduced costs, enabling lab-grown diamonds to be priced at one-fifth to one-tenth of natural diamonds [8] Group 3 - Young consumers are driving the market for lab-grown diamonds, prioritizing design and cost-effectiveness over traditional notions of value retention associated with natural diamonds [9][11] - Sales figures indicate a doubling in revenue for lab-grown diamonds, reflecting a trend towards "self-purchase" among younger demographics [9] - However, challenges remain, such as the lack of standardized grading systems for lab-grown diamonds, which can lead to confusion regarding quality and value compared to natural diamonds [11]