Black Diamond 3 Lines Slot

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Black Diamond 3 Lines
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Game info


The Black Diamond 3 Lines slot game is an improved version of the same titled 1 line machine, both developed by the Pragmatic Play. The only difference is that this one instead of having three coins has only one, but with three optional pay lines. This slot is similar to Glorious Rome.
The Black Diamond 3 Lines slot machine game is an excellent choice, if you prefer managing and calculating with the win lines more that with separate coins.


The structure is as simple as it gets, there are three non-optional reels with three fixed rows and three optional win patterns, meaning that their number can be changed. The goal is to get as many as possible matching symbols on at least one active pay line.

Since there are only six different symbols, and one of them is helping others, which is not a hard task to do, especially because only one gem can double up the wager.

The two most important parameters are:

  1. The bet per line
  2. The number of active winlines

The product of those two is a total stake. Make sure to always take a look at both balance and current wager before spinning so that it suits your play style in the best way possible.

Useful Options

  • Make sure to check out the Auto Play feature if you want to play Black Diamond 3 Lines free slot without any effort because it will roll automatically for as long as you wish.
  • Some swirls for the feature can be changed in the bottom left corner, by clicking the “+” and “-” signs to increase or decrease.
  • Clicking the white rowel in the top right corner will open up a settings menu in which symbol animations, background music, and sound effects can be turned on or off.
  • Roll once by pressing the space bar on the keyboard.
  • Current balance is regularly updated and always shown at the bottom left corner.
  • All six signs and their values are presented in the paytable section on the left side of the screen.
  • The active paylines can be changed by clicking the “Select Lines” button or the exact number at the top left.

Diamonds & Golden Bars

As said before, there are six icons represented as gems and golden bars. The most valuable is a blue gem which is also a wild, so it helps to connect other icons into winning combinations and therefore make more coins. To obtain a prize, at least one purple gem needs to land on any of the reels and any active win pattern, which is great because it will x2, x1 or x2/3 the stake for 1, 2 or 3 active patterns respectively.

The highest possible prize in the free online Black Diamond 3 Lines slot machine after a single roll ends is 6000, and for that to happen, all three patterns need to be active, and three wild icons need to appear.

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