The slot game Diamond Link: Mighty Sevens offers lots of exciting game features, including the Diamond Link Feature with four jackpots up for grabs! Diamond. Game Type. . Return to player. This is a 5×3 slot with 25 fixed pay-lines, which makes it fairly straightforward to play overall. Diamond Link Mighty Sevens is a 5-reel, line online slot game with bonus round, bonus spins, instant play, autoplay, video slots, wild symbol. Play Diamond Link: Mighty Sevens and + of your favourite online slots at Double Bubble Bingo. Play Diamond Link Mighty Sevens slot completely for free, without spending any money. When three Scatter symbols. Diamond Link: Mighty Sevens slot is built around a top progressive jackpot that everyone has their eye on. Try Diamond Link Mighty Sevens slot online for free in demo mode with no download or no registration required. Demo play for fun, no download or registration required. It also can pay up to x your stake – this is all. Land different diamonds in this game and you could unlock a range of bonuses and prizes, including Free Spins and some jackpots. %. Play £10, Get 50 Free Spins (T&Cs Apply). A variety of bonus games and prizes are on offer in this game when you land different diamonds, with Free Spins and a number of jackpots available. You can turn off the gamble game, set up autoplay, or tailor.