Closure of Rio Tinto’s Argyle mine this week, will this reduce diamond supply? will Lucapa benefit from this?

news.com article: https://www.news.com.au/finance/money/investing/iconic-wa-diamond-mine-to-close-making-rare-pink-gems-the-new-faberge-egg/news-story/c0c1c74b1c7f9c828f10bf8ac22f9bc9

Article about Lucapa following the new Sales rules that benefit the Economy of Angola: https://www.diamonds.net/news/NewsItem.aspx?ArticleID=63249

Given that LOM are mining for diamonds that brings benefit the Angolan economy, do you think other diamond companies are doing the same?
In the world of Volatility, Uncertainty, Complexity and Ambiguity. The complexity aspect of how businesses interacts with the rest of the world is seen as an attempt to reducethe ambiguity of human Social, Political, Cultural and economic interaction. This can achieved through self-transformation in which LOM have followed when selling their diamonds.

I believe LOM have taken a path that may benefit them in the long run. Does anyone know if any other mining company acts with this level of ethical action?

Do you think LOM will benefit from a major player in diamond mining closing down a major Diamond mine?

Do you think the ethical element of mining and selling diamonds will attract more interest in Diamond sales now that Diamonds may become more rare?