Roto Grip Exotic Gem
Following the success of the original Gem, Roto Grip presents the Exotic Gem. This high-performance ball utilizes the pearl version of the MicroTrax coverstock and pairs it with the same Defiant LRG core. This core and cover combo produces a ball that will skid through the front part of the lane then dig into the middle of the lane then produce powerful continuation at the back of the lane. The Roto Grip Exotic Gem is a high-end asymmetric pearl ball that performs best on medium/heavy oiled lanes.
- Color: Citrine/Apatite/Amethyst
All colors do vary somewhat from the picture shown - Coverstock: MicroTrax Pearl Reactive
- Core: Defiant LRG (14-16#)
- Finish: Reacta Gloss
- RG: 2.47 (for 15# ball)
- Differential: 0.053 (for 15# ball)
- Recommended Lane Condition: Medium/Heavy Oil
- Hook Potential: High
- Length: Middle
- A few tiny pit holes in the cover stock of the ball are normal
- SKU: RGBBMRXG
- Product ID: 14189
- Brand: Roto Grip
- Category: Bowling Balls
- Ball Performance: High-Performance Balls

Customer Reviews | 4 Customer Questions
By Dave Adams from NJ
Pros:
Versatile, strong off the spot
Best Uses:
House shot killer, medium patterns
Bottom Line:
Yes, I would recommend this to a friend
A rare gem
Exotic gem review
Storm VLS 5 3/4 × 3 1/2 × 1 3/4
I was looking forward to this release as I liked the original Gem but couldn't use it as much as I would like because of how early it rolled. And usually when I like a solid version of a Roto Grip ball, the pearl does not disappoint.
The Exotic Gem reads the lane a little earlier than other pearl balls I've had recently but it very easy to get lined up with. I find it to be versatile in that I can play straighter on the fresh if they are tighter or go to it later in a set when I have to open the lane up. It's a ball I can often throw for 3 games in league, which is rare these days to go without a ball change. I can just chase a little left and keep a similar line. It has no problem recovering on the shots that go right but will still grab enough in the oil to be ok.
Compared to my RST X2, the Exotic is a little earlier but definitely stronger off the spot. It will obviously be much cleaner than the original Gem but the shape will be familiar. This ball has been a league killer, putting up consistently good numbers and again I can use it all night. Because it is so strong, it may burn up if too far in the dry, but moving left it will store some energy and get you right back in it. This is also a ball that everyone I know seems to like, regardless of different styles. You can't go wrong with this in your bag.
Dave Adams
Storm staff
By Tony from Connecticut
Pros:
Very Versatile Bowling Ball
Best Uses:
Many Conditions
Bottom Line:
Yes, I would recommend this to a friend
Exotic Gem A must own Ball
As an experienced bowler who has had the opportunity to test a wide range of bowling balls, I can say without hesitation that the Exotic Gem Bowling Ball from Roto Grip is a must-have for any serious competitor. In fact, this ball is the first one out of my tournament bag.
The MicroTrax Pearl Coverstock and the Defiant LRG Core work together perfectly for me, as I have been able to use the Exotic Gem on a variety of different lane conditions. The ball has been very easy for me to use because it has a very predictable motion. The Exotic Gem has reacted well for me whether I was playing the 4th arrow or the 7 board.
In a few events, I have started with the pearl asymmetric Exotic Gem and then transitioned to the TNT, which has a Solid Cover and symmetrical weight block. That is an interesting combo for me.
In short, I can't recommend the Exotic Gem highly enough. This is truly a great ball, and I will drill a number of them over the coming months and years.
By Joel Donner from Iowa
Pros:
Can Get Deep Early, Stay away from Traffic
Cons:
Does Not like the dry
Best Uses:
Start Deep Early, Get toward the gutter on Oily
Bottom Line:
Yes, I would recommend this to a friend
Exotic Gem
This ball is a monster to be honest. This is one of the strongest pearl balls that I have thrown. The first few times I threw it I liked it but wasn't in love with it until I figured out that I had to get deeper than I was. I was trying to play to straight in the beginning until I figured out that the Exotic Gem definitely likes oil. As soon as I moved deep enough, I was able to open the lane up quite a bit and was able to create some area. The Exotic will allow you to start deeper from the beginning and allow you to stay away from mid set traffic on the track area. This will fit nicely in my bag for when we have a few more lefties on the pair or in a tournament so I can start and stay deep and not have to move or make so many ball changes. The Exotic Gem is a weapon that will be firmly planted in my arsenal, and it hits like a tank. Very powerful ball and looking forward to throwing the Exotic more.
By Rolling Thunder from Illinois
Pros:
Smooth roller, powerful at back end
Cons:
none
Best Uses:
League play
Bottom Line:
Yes, I would recommend this to a friend
This ball is EXCELLENT!!
The Exotic Gem is the best pearl ball on the market today! The layout I used is as follows: 60x 4.5x 55. Go to the BEST VIP Pro Shop, located in Poplar Creek Bowl, Hoffman Estates, IL, New Approach Pro Shop, Brad Snell owner, he's the BEST!! As far as the ball goes, the Exotic Gem is a proven WINNER!! Get yours TODAY!!!
By Rsidney300 from Indiana
Pros:
Stores more energy than Gem/ great compliment
Cons:
Speed sensitive
Best Uses:
Lanes cliffed/ inside angles
Bottom Line:
Yes, I would recommend this to a friend
Clean and responsive
Bought this ball as a compliment to my Storm Fate when I get forced right, but still need something to dig a bit earlier. The strong core of the Gem with the Exotic Pearl cover gives great length and still allows the ball to retain energy when forced right.
By Jd from Cedar Rapids
Pros:
Play deep with it and have a good angle to stike
Cons:
Does not like dry very much
Best Uses:
Start Deep to stay away from traffic early
Bottom Line:
Yes, I would recommend this to a friend
Hits Hard
This ball is a monster to be honest. This is one of the strongest pearl balls that I have thrown. The first few times I threw it I liked it but wasn't in love with it until I figured out that I had to get deeper than I was. I was trying to play to straight in the beginning until I figured out that the Exotic Gem definitely likes oil. As soon as I moved deep enough, I was able to open the lane up quite a bit and was able to create some area. The Exotic will allow you to start deeper from the beginning and allow you to stay away from mid set traffic on the track area. This will fit nicely in my bag for when we have a few more lefties on the pair or in a tournament so I can start and stay deep and not have to move or make so many ball changes. The Exotic Gem is a weapon that will be firmly planted in my arsenal, and it hits like a tank. Very powerful ball and looking forward to throwing the Exotic more.
Customer Questions & Answers | Reviews
Question:
Hi I'm trying to buy this, is this ball drilled or pre-drilled
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Answer:
This bowling ball will not have any finger holes. If we offer a drilling option for an extra fee you could select this to get the holes drilled by us but otherwise you would have to get the ball drilled at a local proshop after you receive the ball.
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Question:
Does this ball work for a slow speed low rev bowler
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Question:
Question would this ball fit under the Phaze two or would the ruby work better
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Answer:
Hello, both options would be a great compliment to the Phaze II while the Exotic Gem would react slightly earlier and more aggressively than the IQ Tour Ruby.
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Question:
What bowling balls are similar to the exotic gem?
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