History shows that investment diamonds have been steadily rising for decades, and the return on investment in developed market economy countries has always surpassed inflation.
Of course, this is not an extremely liquid security, but you can't compare a diamond to a property in a specific location, which is extremely hard to sell.
Diamond trading takes place globally, investment diamonds certified by independent and recognized gemmological laboratories will be recognized everywhere in the world.
History shows that the prices of individual groups of these stones in highly developed countries rose steadily above inflation in the boom periods, while prices in the boom periods were rising, reflecting the flow of capital from conventional investment tools to alternative methods.
Of course, there are standardised diamonds price reports around the world, such as the most important of them is the Rapaport Diamond Report, but the trade in diamonds is only physical.
It is a strictly regulated market.