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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Given the energy consumption and necessary equipment, the HPHT method is quite expensive and results in diamonds that are primarily yellowish or brownish yellow in colour along with metallic inclusions.
Lab-grown diamond industries also use HPHT process to treat CVD-grown diamonds for enhancing their quality or imparting different colors such as yellow, yellowish green, green, pink and blue.