Davinci Diamonds Will Not Leave You Indifferent Davinci Diamonds slots is a product of IGT (International Game Technology) online casino games. We know IGT well, it is one of the âgiantsâ in this industry. With hundreds of slot games and online lotteries, its yearly revenue is nearly 2 billion dollars. IGT produces slot machines in almost all categories, but the company is a true master when it comes to classic video slot games. These are fast games with simple rulesets. Although, nearly each of them has an innovative feature. Davinci Diamonds slot machine is no exception - the game has a very exciting feature which we will mention through this article. Gameplay Davinci Diamonds online has simple graphics - like any other classic video slot game.