Black diamonds have been top of mind last week because Janet Jackson announced on Monday that both her newest studio album and upcoming world tour will be called "Black Diamond." "Black Diamonds are the toughest of all the diamonds, the hardest to cut," Jackson wrote. "I see that as the hardest to hurt or destroy. There is a lot that I have endured. I see myself as a Black Diamond in its purest form. I’m a rock, I have ruff edges but I keep moving forward. I want to show you my strength as well as give you strength." A quick fact-check of Jackson's gemological claims about black diamonds confirms that the 53-year-old singer-songwriter-actress-dancer is right on the mark.
A diamond’s value is often affected by the rarity of one or more of the 4Cs. Colorless diamonds are scarce; most diamonds have tints of yellow or brown. So a colorless diamond rates higher on the color grading scale than a diamond that is light yellow. Value and rarity are related: In this case a colorless diamond is more rare and more valuable than one with a slight yellow color. The same relationship between rarity and value exists for clarity, cut, and carat weight.
A number of celebrity websites have been revisiting a memorable 2011 episode of Keeping Up With the Kardashians — the one where a 14-year-old Kylie Jenner rescues her big sister Kim Kardashian West's $75,000 diamond earring from the ocean floor in Bora Bora. "Diamond finder!" Jenner exclaimed.
While the overall index for fancy-color diamonds — across all their brilliant hues — increased by 77% from 2009 to 2019, it was the pink diamond category that stood out in the report. Market watchers believe that the strength of the pink-diamond segment is attributed to the expected closure this year of the Argyle Diamond Mine, which has been operating in Western Australia for the past 37 years. “Rio Tinto’s Argyle mine is the first and only ongoing source of rare pink diamonds in history,” said Rio Tinto Copper & Diamonds chief executive Arnaud Soirat in 2019. “With the lifecycle of this extraordinary mine approaching its end, we have seen, and continue to see, unstoppable demand for these truly limited-edition diamonds and strong value appreciation.” Two of the world's most famous — and valuable — pink diamonds are The Pink Star and the Pink Legacy