印度采购需求：实验室培育裸钻、实验室钻石首饰、实验室培育毛坯钻石、钻石、CVD毛坯钻石、实验室制造钻石

I'm looking to source high-quality uncut CVD lab diamonds from manufacturers in China. My primary interest is in understanding the range of products you offer, including details on various sizes and qualities available. Please provide information on your pricing structure, minimum order quantities, and lead times for delivery. Additionally, I'm keen to know about your production capabilities and any certifications that your diamonds may have. Sustainability and ethical sourcing are also important to me, so insights on your sourcing practices would be appreciated. I look forward to your prompt response so we can explore potential collaboration opportunities.