Core Insights - The announcement by Henan Power Diamond Company at the 15th China Henan International Investment and Trade Fair highlights the successful cultivation of a 156.47-carat diamond using the High-Pressure High-Temperature (HPHT) method, setting a new record for the largest lab-grown diamond in the world [1][3] Group 1: Technological Advancements - The breakthrough in HPHT technology addresses challenges in carbon source distribution and temperature-pressure control, achieving a diamond purity of D color and VVS clarity, surpassing some natural diamonds [3] - The production capacity in Henan's Zhecheng County, with a population of less than 600,000, accounts for nearly 50% of the global lab-grown diamond output, producing over 6 million carats annually [3] Group 2: Market Dynamics - The cost of lab-grown diamonds is only 20% of that of natural diamonds, with the price of a 1-carat D color VVS diamond ring dropping to 5,000-6,000 yuan, leading to a trend of "carat freedom" in consumer spending [5] - Major players like De Beers have been forced to adapt due to the impact of lab-grown diamonds, experiencing a cumulative price drop of 40% within a year and a projected 60% decline in net profit for the 2024 fiscal year [5] Group 3: Consumer Trends - 63% of China's Generation Z prioritize environmental and ethical considerations when purchasing jewelry, with lab-grown diamonds having only one-seventh the carbon emissions of natural diamonds, thus shifting consumer preferences from "buying stories" to "buying value" [5] Group 4: Industrial Applications - The large single crystal diamonds can be utilized in precision manufacturing, optical devices, and chip wafer processing, marking a significant milestone in China's advanced material technology [7] - Henan Huanghe Xuanfeng has developed diamond wafers with a thermal conductivity of 2200 W/m·K, five times that of copper, providing solutions for heat dissipation in 5G base stations and AI chips [7] Group 5: Government Support and Investment - The Henan provincial government has invested over 70 million yuan in research funding, collaborating with universities on CVD synthesis and semiconductor application technologies, and has signed nine key projects totaling 5.75 billion yuan [8]