• Free delivery on all orders over £50

Target Japan Prime Series Diamond Gen 4 SP Darts

Description

Developed in collaboration with Kosuzu Iwao (いわお小鈴), the DIAMOND G4 redefines the “Diamond” concept with a perfect blend of beauty, precision, and performance.
This fourth-generation model captures Kosuzu’s evolving spirit — confident, bold, and radiant on and off the stage.

💍 Triple Diamond Ring Design – Fashion Meets Function
At the heart of the DIAMOND GEN 4 lies its signature triple diamond ring motif, inspired by stacked jewelry rings.
This design creates a fashionable, layered look, combining artistic beauty with functional precision:
•    The three diamond rings each feature distinct groove depths and shapes, creating varied grip textures that enhance control and prevent slipping.
•    The stacked-ring structure allows the fingers to naturally recognize grip position, supporting consistent throws and stable release.
Like fine jewelry, the triple ring pattern shines with elegance—a perfect fusion of strength and sophistication.

🔴 Signature Red Line Accents – A Modern Diamond Aesthetic
Accented with vivid red lines, the barrel reflects Kosuzu’s favorite color palette, tying the design back to the vibrant art direction of the DIAMOND series.
The red detailing not only enhances visual impact but also embodies energy, confidence, and passion, mirroring the fiery determination of the player herself.

⚙️ Grip & Shape – Precision in Every Throw
•    Straight Barrel Profile: Designed for versatility and balance, this shape offers smooth handling and adaptability — easy to use for both beginners and advanced players.
•    Front Section: Softened shark cuts provide a smooth yet responsive touch, perfect for controlled release.
•    Center Section: Signature diamond-pattern cuts integrated with ring grooves ensure precise feedback and visual flair.
•    Rear Section: Alternating mild shark cuts offer moderate yet firm grip traction, making it easy to find and maintain the perfect hold.

The entire barrel is carefully arranged to provide grip stability across all positions, supporting a wide range of throwing styles.

✨ A Dazzling Fusion of Form and Function
The DIAMOND G4 continues the legacy of the DIAMOND series — combining competitive performance with fashion-inspired design.
Its sleek black body, bold red accents, and geometric precision embody the brilliance of its name, symbolizing both strength and individuality.
Stylish, versatile, and powerful — the DIAMOND G4 is the next evolution of brilliance, ready to shine in every game.

Target Japan Prime Series Diamond Gen 4 SP Darts

Product form

£119.99 Incl. VAT


Free pickup in our shop(s)
    • Over 400+ darts available in store
    • Free delivery on all orders over £50.00

    Description

    Developed in collaboration with Kosuzu Iwao (いわお小鈴), the DIAMOND G4 redefines the “Diamond” concept with a perfect blend of beauty, precision, and performance.
    This fourth-generation model captures Kosuzu’s evolving spirit — confident, bold, and radiant on and off the stage.

    💍 Triple Diamond Ring Design – Fashion Meets Function
    At the heart of the DIAMOND GEN 4 lies its signature triple diamond ring motif, inspired by stacked jewelry rings.
    This design creates a fashionable, layered look, combining artistic beauty with functional precision:
    •    The three diamond rings each feature distinct groove depths and shapes, creating varied grip textures that enhance control and prevent slipping.
    •    The stacked-ring structure allows the fingers to naturally recognize grip position, supporting consistent throws and stable release.
    Like fine jewelry, the triple ring pattern shines with elegance—a perfect fusion of strength and sophistication.

    🔴 Signature Red Line Accents – A Modern Diamond Aesthetic
    Accented with vivid red lines, the barrel reflects Kosuzu’s favorite color palette, tying the design back to the vibrant art direction of the DIAMOND series.
    The red detailing not only enhances visual impact but also embodies energy, confidence, and passion, mirroring the fiery determination of the player herself.

    ⚙️ Grip & Shape – Precision in Every Throw
    •    Straight Barrel Profile: Designed for versatility and balance, this shape offers smooth handling and adaptability — easy to use for both beginners and advanced players.
    •    Front Section: Softened shark cuts provide a smooth yet responsive touch, perfect for controlled release.
    •    Center Section: Signature diamond-pattern cuts integrated with ring grooves ensure precise feedback and visual flair.
    •    Rear Section: Alternating mild shark cuts offer moderate yet firm grip traction, making it easy to find and maintain the perfect hold.

    The entire barrel is carefully arranged to provide grip stability across all positions, supporting a wide range of throwing styles.

    ✨ A Dazzling Fusion of Form and Function
    The DIAMOND G4 continues the legacy of the DIAMOND series — combining competitive performance with fashion-inspired design.
    Its sleek black body, bold red accents, and geometric precision embody the brilliance of its name, symbolizing both strength and individuality.
    Stylish, versatile, and powerful — the DIAMOND G4 is the next evolution of brilliance, ready to shine in every game.

      FAQ's

      Do you deliver across the UK?

      Yes you can order online for UK delivery, with the option to visit us in Hull City Centre if you prefer shopping in person.

      How long does delivery take and how much is it?

      Delivery times and costs depend on your order and shipping option; the checkout will show the available choices before you pay.

      Can I collect my order from the Hull shop (click & collect)?

      Yes customers can order online and pick up from Bond Street in Hull (HU1).

      What’s your returns policy?

      We accept returns within 14 days of receiving your order, as long as the item is unused and in its original packaging. To arrange a return, email us at info@ontheochedarts.co.uk with your order number and the reason for returning the item. For more information, please see our Returns Policy.

      How do I choose the right darts (weight, grip, barrel shape)?

      If you’re unsure, we can help you narrow it down based on your throw and preferences and you can also try darts in-store on our professional-standard lanes.

      Do you sell flights, stems, points and other spares?

      Yes we stock a wide range of accessories like flights, stems, points, cases and dartboards so you can keep your setup fresh.

      Do you stock top darts brands?

      Yes we stock major brands including Mission, Winmau, Target and Harrows, alongside plenty of accessories.

      Do you stock fixed flight systems like K-Flex?

      Yes we’ve stocked the newest K-Flex and other fixed flight systems.

      Can I book a practice lane in-store?

      Yes lanes can be booked by the hour, and you’ll need to bring your own darts (or buy a set in-store).

      © 2026 On The Oche Darts

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