4 Carat Diamond Engagement Rings

A 4-carat diamond engagement ring is an unforgettable declaration of love. Defined by extraordinary beauty and impressive scale, each piece in the Pragnell collection is hand-selected for its fire, precision, and character. Whether showcased in a classic solitaire or intricate diamond set designs, a 4-carat ring radiates brilliance and distinction

Discover fine craftsmanship, discreet access to exceptional stones, and designs created to be treasured for generations with support from our comprehensive Diamond Guide.

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Masterpiece Weave Setting 4.07ct Pearshape Diamond Solitaire Ring

in 18ct Yellow Gold

$85,983

Regency 4.07ct Brilliant Cut Diamond Ring

in 18ct Yellow Gold

$183,482

Kite Setting 4.04ct Emerald Cut Diamond Ring

in 18ct Yellow Gold and Platinum

$136,893

Classic Six-Claw 4.08ct Brilliant Cut Diamond Ring

in Platinum

$152,732

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Bespoke & Custom Design Engagement Rings

Design your own engagement ring with our bespoke service. Working closely with our jewellery specialists, you can create a custom piece tailored to your exact vision. From selecting the perfect diamond to incorporating personal details or heirloom stones, we guide you through every step of bringing your dream ring to life. Book an appointment to begin your bespoke journey.

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Our Handpicked Selection of 4 Carat Rings

Every 4-carat diamond ring we select meets Pragnell’s highest standards for beauty, balance, and brilliance. Our experts look beyond the 4Cs, evaluating each diamond for light performance, mounting elegance, and the harmony between stone and setting. For those seeking varied aesthetics, our brilliant cut engagement ring collection provides further inspiration.

Discover pieces made to celebrate individuality—from clean, modern lines to classic silhouettes with a distinguished British sensibility.

Craftsmanship Rooted in Heritage

For over six generations, our family has built a legacy of expertise in fine jewellery and exceptional gemstones. Each 4-carat ring is crafted by master artisans who blend traditional benchwork with modern precision. From hand-finished prongs to meticulously set pavé details, every aspect is perfected to enhance the diamond’s natural brilliance. Discover the artistry and dedication behind our craftsmanship—each ring is meticulously finished to achieve the highest possible standard.

Choosing the Perfect 4 Carat Diamond

A diamond of this calibre deserves thoughtful consideration. Our specialists expertly guide you through the essential qualities that define an extraordinary 4-carat stone, with insights from our comprehensive Engagement Ring Guide.

Brilliance & Light

Cut precision is paramount—the way a diamond interacts with light determines its captivating fire and brilliance.

Shape & Proportion

Every diamond shape possesses distinct character. Ideal proportions enhance both the ring's visual presence and comfort. Explore our curated collection of oval cut engagement rings for inspiration.

Colour & Clarity

At four carats, colour and clarity become more pronounced. We select only those stones where exceptional quality elevates natural beauty.

Setting Style

The setting should complement the diamond and reflect your personal style, whether you prefer minimalist elegance or intricate detail.

Our in-house diamond specialists are available for personalised consultations, ensuring your vision comes to life in a private appointment.

The Pragnell Experience: Unparalleled Service and Expertise

Choosing a 4-carat engagement ring is an extraordinary moment. At Pragnell, your experience is distinguished by discretion, unmatched expertise, and truly personalised service.

• Discreet access to hand-selected diamonds chosen for exceptional rarity and radiance
• Independent, family-owned British jeweller with six generations of heritage
• Master artisans working in our own workshops
• Complimentary aftercare services including ring resizing and professional check ups
• Confidential consultations available in our Stratford upon Avon, London, and Leicester showrooms

Our legacy ensures that every ring upholds exceptional standards, from the selection of the diamond to its exquisite final presentation.

Begin Your Journey

Explore our collection of 4-carat diamond engagement rings online or book a private consultation with a Pragnell specialist. Let us help you find a ring worthy of life’s most significant moments.

Frequently Asked Questions

Below are the answers to our most commonly asked questions. Should you want to find out more please feel free to Contact Us and begin your Pragnell experience.

A 4-carat diamond offers exceptional presence and rarity. At this size, the beauty of the stone becomes truly striking, with brilliance, fire, and proportion playing an even more important role. Every Pragnell diamond is hand chosen to ensure extraordinary quality. Explore our complete engagement rings offering to compare styles.

The value of a 4-carat diamond varies depending on cut, colour, clarity, and shape. At Pragnell, we curate stones that represent the finest balance of beauty and quality, and our specialists are available to guide you through options that suit your preferences.

Larger diamonds pair beautifully with both minimal and more intricate settings. Solitaire designs emphasise the stone’s scale and sparkle—discover options in our diamond solitaire collection—while diamond set bands may enhance overall brilliance. Our experts can help you choose a setting that suits the stone and your personal style.

Yes—when created well. Pragnell rings are crafted by master craftsmen, with robust, refined settings designed for daily wear. We advise regular check ups via our aftercare services to guarantee your ring is secure and looking its best.

Absolutely. Our in house workshops and design team offer a full bespoke engagement ring service, allowing you to create a ring that reflects your individual vision while featuring a beautifully chosen 4-carat diamond.

Yes. Pragnell provides complimentary aftercare, including professional cleaning, inspections, and resizing. We’re committed to making sure your ring continues to shine for generations. Learn more about our available aftercare services.