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Diamond Jiu-Jitsu

5 ★★★★★ 11 Google reviews · BJJ gym in Tempe, Arizona

BJJ gym Free trial Beginners welcome Kids & teens No-gi Competition team New

Plan your first class

  • Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth BJJ classes — built around discipline, focus, and confidence
  • No-gi no-gi grappling classes — training in a rashguard and shorts, with faster scrambles and a natural bridge to MMA
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule diamondjiu-jitsu.com — book classes and see the live schedule
  • Phone (480) 338-8352

Hours

Monday 4–8 PM
Tuesday 4–8 PM
Wednesday 4–8 PM
Thursday 4–8 PM
Friday 4–8 PM
Saturday 9 AM–12 PM
Sunday Closed

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

BJJ classes on the schedule at Diamond Jiu-Jitsu, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 2 mentions

“My kids have no experience in jiu jitsu but they have been showing a lot of interests.”

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🏆 Competition Team 3 mentions

“He’s an exceptionally skilled competitor and instructor who clearly cares about his students.”

All gyms that run competition team →

🛡️ Self-Defense

All gyms that run self-defense →

🌱 Beginners 5 mentions

“While still small and growing, Diamond Jiu-jitsu offers an optimal environment for beginners to learn and veterans of the sport to fine tune techniques.”

All gyms that run beginners →

What members say

The things reviewers bring up again and again across 11 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 4 mentions

“Being a complete beginner being able to learn world class instruction from professor Jacob in an encouraging and engaging way.”

🌱 welcoming to beginners 7 mentions

“While still small and growing, Diamond Jiu-jitsu offers an optimal environment for beginners to learn and veterans of the sport to fine tune techniques.”

🤝 no-ego, friendly academy 4 mentions

“The facility is excellent spacious mats, spotless clean, and a welcoming atmosphere that makes training a pleasure.”

📘 strong technique & fundamentals 3 mentions

“While still small and growing, Diamond Jiu-jitsu offers an optimal environment for beginners to learn and veterans of the sport to fine tune techniques.”

active competition team 3 mentions

“He’s an exceptionally skilled competitor and instructor who clearly cares about his students.”

🧼 clean, well-kept mats 10 mentions

“The facility is excellent spacious mats, spotless clean, and a welcoming atmosphere that makes training a pleasure.”

From the reviews

As a mother, there are few things more rewarding than watching your child dedicate himself fully to something he loves. I have had the privilege of witnessing Jacob’s journey in Jiu-Jitsu from the very beginning - from the early mornings, the long evenings at practice, the tournaments, the setbacks, and the victories.

★★★★★ — Melissa, Feb 2026

It has been nothing but a good experience from my first conversation with Frank. Upon coming to my kiddos trial class the studio is very clean and nice. I was greeted by Frank and the head instructor Jacob who were both very nice. My kids have no experience in jiu jitsu but they have been showing a lot of interests.

★★★★★ — Leanna, Feb 2026

My experience at Diamond Jiu-Jitsu has been outstanding. The facility is excellent spacious mats, spotless clean, and a welcoming atmosphere that makes training a pleasure. What truly sets this gym apart is the head instructor, Jacob.

★★★★★ — Fred, May 2026

This is an incredible Jiu-Jitsu Academy. As a complete beginner, I was nervous to try BJJ, but Frank and Jacob made it easy from day one. They have pushed me to be better every class. I cannot wait to continue my Jiu-Jitsu journey here. The gym itself is very clean and well-maintained.

★★★★★ — James, Jun 2026

Excerpts from public Google reviews. Read all 11 reviews →

New to BJJ? Start at Diamond Jiu-Jitsu

Diamond Jiu-Jitsu comes up as a beginner-friendly gym, going by their listing and members’ reviews. If you've never rolled or set foot on a mat, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit or flexible to start — you get in shape by training, not before it, and coaches scale the intensity to you. Second, you won't be thrown into hard rolling — reputable gyms build fundamentals (positions, escapes, and basic submissions) for weeks, live rolling eases in gradually, and tapping early keeps every roll safe. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out, and leave your ego at the door. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

Check beginner classes on their site

Your first BJJ class at Diamond Jiu-Jitsu

Nervous about walking into a BJJ gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling basic positions and escapes with a partner — not hard sparring. Rest whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot on the mats. What to bring: water and a mouthguard if you have one — many gyms lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi (or a rashguard and shorts for no-gi) and a mouthguard. Live rolling eases in gradually, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

BJJ is a contact sport. Ease in, tap early and often, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Diamond Jiu-Jitsu

1805 E Baseline Rd #103, Tempe, AZ85283

Get directions

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.