Review of Diamond Sports Book

Diamond Sports Book International (DSI) got their start back in 1998. Located in San Jose, Costa Rica, DSI has brought plenty of action to those who love baseball, basketball, football, or any other sport. However, it wasn't until they partnered with "Bookmaker" that they became a huge entity in the sports wagering world.

Here are a few things to consider when looking over DSI:

Strong Reputation

Based in San Jose, Costa Rica, Diamond Sports Book has been online since 1998. They built a reputation as a sportsbook that offers safe, legal and secure online wagering to all types of bettors from novices to professionals. Although they partnered with BetCRIS, which also is a top quality sportsbook with major financial backing, DSI maintains their independence when it comes to creating a unique betting experience by setting their own lines, bonuses and promotions.

Known for their early lines and 24/7 customer service (live chat or telephone), DSI always rate very highly among the sportsbook review sites and the sports betting community. Diamond is a premier sportsbook that you don't have to worry about when it comes to getting paid.

Quality Service & Website Ease of Use

There is a good possibility you will have questions at some point that revolve around their service. DSI provides customer service 24/7. In fact, they are considered by many to have the best experts in the sports wagering world, and they will go the extra mile to help with all your needs. If you do have questions and don't want to make a call, then use their live chat. It is available 24/7, 365.

Diamond Sportsbook gives you more ways to deposit your money than most sportsbooks in the gaming industry, including credit cards, and they pay the fees on every deposit. Multiple processors ensure that the deposits are quick and secure.The Diamond Sports Book works very hard to ensure that when you decide to withdraw your winnings, you get your money back in as little as 24 hours. DSI does not want you to worry at all about getting paid.

Diamond Sports Book offers a pretty simplistic screen for wagering. The classic style allows you to select your wager type and then search for all the games for that particular sport. Check the box of any winning team and confirm your total wager.

Dime Lines

Yes, Diamond Sports Book offers a progressive dime line from -105 to -139. It moves to a 15 cent line from -145 to -169 and to a 20 cent line from -175 to -189. It becomes a 30 cent line at -200 to -225 and a 40 cent line from -240 to -285.

In the sports gambling world, "dime line" means a 10 cent money line. It is the difference between the odds for the favourite and the underdog. Gamblers most commonly use the 10c lines in baseball.

The sportsbook offering the 10c line pays $10 more on the underdogs than the 20 cent bookie. This makes a huge difference over the course of the season.

Target Audience

Every sportsbook caters toward a different kind of sports bettor. The goal is to use this knowledge and take advantage of it.

Although recreational players do love Diamond Sports Book because of the loyalty points program, the wide assortment of betting lines and the good customer service, DSI is considered a sharp line sportsbook. A sportsbook is considered sharp for a couple of different reasons.

First of all, they’ll either originate their own line or be one of the very first to get their number out there for wagering. DSI open the lines for many sports. If Diamond is not first, they will be a close second.

Secondly, they also deal with sharp players. A sharp player, or wiseguy, is a bettor that doesn’t wager on the same games that the majority of the public is betting. The wiseguy looks for the best value for their wagering dollar.

Since many wiseguys bet the underdogs, sharp line sportsbooks are less likely to shade the lines based on public action. For example, if a line opens at -140 on the NY Yankees and 75% of the public bets on the Yankees, many sportsbooks will move the line to -150 or higher. Sharp sportsbooks are “less likely” to move the line based on public action.

If you like betting on favourites, DSI may be a good fit for you.

Programs & Promotions

Diamond Sports Book offers a 20% free play new account bonus (max of $500) with a 5x rollover. They also have a 10% free play with reloads (max of $500) with a 3x rollover. Their referral bonus is great at 10% (max of $200) which is based on the referral's initial deposit.

Throughout the year they'll have various bonuses and promotions. They also have a loyalty program where you can accumulate points to redeem for cash, prizes, and merchandise.


Both professionals and recreational bettors alike appreciate the Diamond Sports Book because of the loyalty points program, the wide assortment of betting lines and the good customer service. DSI also offers dime lines, which are important for getting good value on underdogs. In addition, if you like to bet favourites, this may be an ideal fit for you since it is considered a sharp book. Sharp books do not normally shade their lines.

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