Core Insights - The A-share cultivated diamond sector is experiencing significant growth, driven by policy changes and technological advancements, transitioning from a decorative to a functional application in high-end manufacturing [1][2] - Cultivated diamonds are being recognized for their strategic value, particularly in the semiconductor industry, where they serve as ideal heat dissipation materials [2][4] - China's dominance in the cultivated diamond market is evident, controlling 95% of global production capacity, but the industry faces structural imbalances, particularly in processing and branding [7][8] Group 1: Market Dynamics - The cultivated diamond market is undergoing a value reconstruction, shifting from decorative uses to functional applications, particularly in electronics [1] - The global cultivated diamond market is facing pressure, with India's imports of rough diamonds dropping by 37.01% year-on-year, indicating overcapacity and price wars [4][6] - In contrast, the natural diamond market shows resilience, with a 14.07% year-on-year increase in rough diamond imports in August [5] Group 2: Policy Implications - The Chinese government has implemented export controls on synthetic diamond products, which may initially hinder exports but will ultimately drive the industry towards technological advancements and high-end production [4][8] - The policy changes will create different opportunities and challenges across the supply chain, benefiting upstream manufacturers and supporting midstream processing capabilities [9][10] - The domestic market for cultivated diamonds has significant growth potential, with current penetration at only 5%, suggesting substantial room for expansion [9][11] Group 3: Investment Opportunities - Investors are advised to focus on companies with leading advantages in semiconductor heat dissipation applications and large single crystal production, as these areas are encouraged by policy and have high technical barriers [10][11] - The trend towards domestic production of detection instruments and core equipment is expected to create growth opportunities for specialized companies in the cultivated diamond sector [11][12] - The recent export control policy marks a pivotal moment for the cultivated diamond industry, shifting growth drivers from price competition to technological breakthroughs and value enhancement across the entire supply chain [12]