Black Diamond is a gemstone themed slot from Pragmatic Play. Available on desktop, tablet and mobile devices, it’s a simple 5 reel, 25 payline game that comes with a pick me feature and a bonus feature that awards up to 20 free spins. Play from between 25p and £125 per spin.

The set up in Black Diamond is pretty basic given the jewel theme – set against a snow-capped, mountain top backdrop, the reels include an assortment of eight brightly coloured rings and gemstones. The most rewarding is the red stone – land 5 of these on 1 of the game’s 25 paylines and you’ll pocket a very handsome payout of some 6,000 coins.

Helping you along your winning way is the black diamond of the title which is the game’s wild – it replaces all other symbols apart from the scatter and bonus symbols.

Black Diamond comes with 2 bonus features. Land the red ruby gemstone scatter on reels 1 and 5 on the same spin and you’ll trigger the Free Spins feature – here you’ll be awarded 10 free spins. You can re-trigger more free spins, up to 20 in total, if the scatters return on reels 1 and 5.

The other symbol to keep an eye on is the stack of gold bars which appear on the middle 3 reels only. When they do hit on an active payline on reels 3, 4 and 5 on the same spin, you’ll activate the Pick Me feature – pick from the gemstones shown to reveal instant win bonuses of between 40 and 600 coins.

Given the luxury theme, we found the design to be lacking a little sparkle. It’s all perfectly serviceable but there was a distinct lack of bling. The jangly soundtrack is a nice complement to the theme though.

As far as variance goes, we’d put Black Diamond in the low to medium category. The features aren’t the easiest to trigger but you can expect a steady stream of base game wins. We endured many near misses trying to trigger the Pic Me feature. That and the free spins can deliver though. As can the high, 5-in-a-row payouts.

Black Diamond isn’t the most exciting slot you’ll come across wither in terms of design or features. There’s a certain hypnotic quality to it though so if you’re after some simple, shiny thrills, it’s worth a closer look. I suggest you play some of Pragmatic Play’s other games with 7 Monkeys highly recommended.