CLEAN : FILE: Rare flawless diamond fetches US$15.7m in Hong Kong auction

The video tutorial discusses the pricing and market influences on diamonds, highlighting the quality, clarity, and chemical purity of diamonds. It explores the evolution of diamond cutting techniques from historical methods to modern technology. The tutorial also examines the market value and historical sales of high-caliber diamonds, emphasizing the skill required in cutting and polishing. Overall, it provides a comprehensive overview of the diamond industry, from extraction to market dynamics.

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