黄杨钿甜戴的“230万耳环”，到底什么来头？

Group 1 - The article discusses the controversy surrounding actress Huang Yangtian's expensive earrings, which are suspected to be from the luxury brand Graff, valued at approximately 2.3 million yuan [2][12][34] - Graff is portrayed as a mysterious high-end jewelry brand that caters to the ultra-wealthy, with limited marketing and a focus on exclusivity [4][36][43] - The discussion includes the concept of "fire" in diamonds, which refers to the light reflection that gives diamonds their sparkle, and the challenges in distinguishing between real and synthetic diamonds [5][6][28] Group 2 - The article highlights the skepticism regarding the authenticity of the earrings, with various opinions from self-proclaimed experts and industry professionals [8][25][26] - Graff's reputation is further examined, noting its history and the founder's acquisition of diamond mines, which solidified its status in the luxury market [49][50][48] - The article emphasizes that owning Graff jewelry is not merely for adornment but serves as a status symbol among the elite, reflecting wealth and power [55][56][60]