美国采购需求：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 for high-quality diamonds in various carat weights, specifically 1, 2, and 3 carats. The diamonds should have a VS1 clarity grade and excellent cut quality. It's important that they do not have fluorescence. Please provide options that come with IGI certification. I'm interested in understanding the pricing, availability, and any other relevant details about these diamonds. Looking forward to your prompt response!