Grid Coffee

Diamond Bar, CA · Coffee shop

Rating
4.4/5
★★★★☆ 4.4
Reviews
20
Rank in Diamond Bar
#27
of 102 restaurants
City Percentile
59%
rating percentile
Address
Grid Coffee, 1139 S Diamond Bar Blvd Ste B, Diamond Bar, CA 91765
Phone
(909) 551-2688
Status
Closed · Opens 7 AM

Grid Coffee is a restaurant located in Diamond Bar, CA. It is one of 102 restaurants listed in Diamond Bar. Its 4.4-star rating is above the Diamond Bar city average of 4.2 stars. There are 10 photos associated with this location.

Hours

Saturday7 AM–5 PM
Sunday7 AM–5 PM
Monday7 AM–5 PM
Tuesday7 AM–5 PM
Wednesday7 AM–5 PM
Thursday7 AM–5 PM
Friday7 AM–5 PM

Customer Reviews

★★★★★ 5.0 vivihoney love · Jan 2026

LOVE IT!!! It’s a 15 min drive from home but totally worth it!! Best coffee around Walnut and diamond bar area. The latte is full of flavour and the topping is delicious! Lots of cute dogs in the shop so it’s totally pet friendly. Try all their interesting lattes, you will be coming back for more!

★★★★★ 5.0 XY · Jan 2026

This coffee shop has a unique interior—simple yet modern—with flexible seating that lets you arrange tables and chairs for comfort and space optimization. The WiFi is reliable, and there are plenty of outlets, making it a great spot for studying. The cafe latte I ordered was reasonably good.

★★★★★ 5.0 Wesley Erickson · Jan 2026

The drinks are super bomb and the service is great at Grid. I’ve tried a few drinks Einspanner Latte (favorite coffee drink!) Blueberry Matcha Latte Strawberry Matcha Latte (my second favorite) Double Matcha Latte (my favorite!!!) — highly recommend

★★★★☆ 4.0 Tieu Van Pham · Oct 2025

very aesthetic cafe, love the seating arrangement and minimal interior cool look. matcha was pretty good although slightly on the sweeter side. croffle was really yummy except i wished i asked for it to be warmed up

★★★★★ 5.0 Andy Tram · Jun 2025

Grid coffee is a spot with great coffee and environment for chatting or getting some work done. I went on Saturday at around 9 AM and it wasn’t busy yet. I was able to order right away and get my order within a few minutes. I stayed about 2 hours and it definitely got busier over time. For the drink, I got the Einspanner latte with oat milk. The cream top was sweet, but once you mix it, it’s the right balance. I’d recommend this and would get it again! I was able to grab the table with an outlet right behind me. There was a lot of space for a laptop. There’s also free WiFi available, but it was a bit spotty. The noise level was moderate to high, because the music was loud and there were a lot of customers. The store is located in a shared plaza. There’s plenty of parking spots availabl

Accessibility & Amenities

✓ Onsite Services ✓ Takeout ✓ Dine In ✓ Delivery ✓ Great Coffee ✓ Great Tea Selection ✓ Solo Dining ✓ Good For Working On Laptop ✓ Wheelchair Accessible Entrance ✓ Wheelchair Accessible Parking Lot ✓ Wheelchair Accessible Restroom ✓ Wheelchair Accessible Seating ✓ Coffee ✓ Quick Bite ✓ Dessert ✓ Table Service

Services

Coffee shop

Top Restaurants in Diamond Bar

NameRatingReviews
Hikari Sushi★★★★★ 5.020 reviews
Raw n Dash★★★★★ 5.018 reviews
Tacitas Coffee★★★★★ 4.920 reviews
Hungry Bulldog House★★★★★ 4.820 reviews
Mr. G's Pizza - Diamond Bar★★★★★ 4.720 reviews
Makomae Japanese Cuisine★★★★★ 4.720 reviews
Silver Spoons Thai BBQ House★★★★★ 4.720 reviews
Basil And Co★★★★★ 4.720 reviews
Mr Poke★★★★★ 4.620 reviews
Ginkgo Katsu★★★★★ 4.620 reviews

This listing is informational. Contact the business directly to verify credentials, services, and availability.