Diamond G4 SP 90% Tungsten Red and black darts with a packaging box featuring Kosuzu Iwao and brand name on a white background.
Kosuzu Iwao Diamond G4 SP 90% Tungsten packaging with colorful design and player image
Dart with specifications on a red and white background
Red dart flight with K-Flex branding and Target logo on a white background
Kosuzu Iwao in a red sports jersey with 'Target Japan' and 'Diamond' branding on a red background.
10-piece dart set with components labeled on a white background
Swiss Point dart system with red dart, black holder, and patent lock features on a white background.
Diamond G4 SP 90% Tungsten Red and black darts with a packaging box featuring Kosuzu Iwao and brand name on a white background.
Kosuzu Iwao Diamond G4 SP 90% Tungsten packaging with colorful design and player image
Dart with specifications on a red and white background
Red dart flight with K-Flex branding and Target logo on a white background
Kosuzu Iwao in a red sports jersey with 'Target Japan' and 'Diamond' branding on a red background.
10-piece dart set with components labeled on a white background
Swiss Point dart system with red dart, black holder, and patent lock features on a white background.

Kosuzu Iwao Diamond G4 SP 90% Tungsten

$219.95
$219.95
SKU: 01151324
Vendor: Target Japan
Product Type: Steel Tip Darts
Weight: 24g
Shipping & Return  

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
if you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Weight: 24g

Product Description

The DIAMOND G4 darts, developed in collaboration with Kosuzu Iwao and Target Darts, represent a bold evolution of the DIAMOND series—where elegance meets high-performance precision.

This fourth-generation model reflects Kosuzu’s confident and radiant presence on the oche, blending refined aesthetics with a design built for consistency and control. At its core is the signature triple diamond ring motif, inspired by stacked jewelry rings. Each ring features varying groove depths and textures, creating a multi-layered grip that enhances finger placement, prevents slipping, and delivers reliable feedback throw after throw. The result is a barrel that feels as natural as it looks striking.

Accentuated with vivid red detailing—Kosuzu’s signature colour—the DIAMOND G4 captures a modern, energetic aesthetic that stands out instantly on the board. The sleek black coating paired with sharp geometric cuts creates a premium, fashion-forward look while reinforcing the dart’s performance-driven design.

A straight barrel profile ensures versatility for a wide range of players, offering balanced handling and smooth release whether you grip from the front, middle, or rear. Subtle shark cuts at the front provide controlled release, while the center’s diamond-pattern machining and the rear’s alternating grip textures work together to maintain stability and consistency throughout the throw.

Stylish, precise, and built to perform, the DIAMOND G4 is a seamless fusion of form and function. Designed for players who value both aesthetics and accuracy, it continues the legacy of the DIAMOND series with a fresh, confident edge—ready to shine in every match.

What’s in the box?

  • 3x 90% Kosuzu Iwao Tungsten Barrels
  • 3x Swiss Nano SP 30mm Silver points
  • 3x Red K-Flex No.2 Flights and Shafts
  • 1x Premium Swiss Point Tool

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