The Mermaids Diamond video slot from PlayNgo is about a a wondrous world of treasure below the surface. Mermaids Diamond has 5 reels with 720 winning combinations. Swim among the squid and rays to scour the sea for jewels like rubies, emeralds and especially valuable diamonds. The beautiful and benevolent mermaid serves as a wild symbol. Whenever two or more mermaid symbols appear on the same reel, she stretches out her fishtail and covers the entire reel to help you win more.