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Fancy Shape Diamond Engagement Rings



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Embrace the Sparkle
輝きは人生と共に



Be free. Be us.

Every love story deserves its own engagement ring.

Just as no two love stories are ever the same, each engagement ring carries its own unique character. At DIALLURE, designs crafted in our atelier are brought to life with the meticulous handwork of Japanese artisans—creating a one-of-a-kind engagement ring made exclusively for the two of you.

Your Choice of Diamond Shape

At DIALLURE, you can choose from 10 distinct diamond shapes. Each one offers a unique expression of beauty—full of personality and character. In fact, it’s rare to find this many shape options available at a single brand in Japan. But we believe that the shape that truly suits you should be as individual as you are. With that belief at heart, DIALLURE is here to help you discover the sparkle that fits you best—as a couple, and as yourselves.
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Your Choice of Diamonds

On the right: a natural diamond ring. On the left: a lab-grown diamond ring. Both feature the same diamond—just created differently. At DIALLURE, we don’t tell you which one to choose. We simply offer a place where you can choose the one that feels right for you. Visit our showroom to compare both kinds of brilliance side by side, and find the one that truly aligns with your values.

Best-Selling Engagement Rings

All featured designs can be customized with your choice of center diamond shape. From round and oval to emerald and more, choose from 10 distinct cuts to create a ring that perfectly reflects your style.
Eva オーバルカットソリティアリング | ラボグロウンダイヤモンド/ダイヤモンド 婚約指輪

Eva solitaire ring

A classic ring featuring a simple single diamond and a delicate band. The Tiffany setting (pronged)...

Kate エメラルドテーパードバゲットサイドストーンリング ダイヤモンド/ラボグロウンダイヤモンド

Kate tapered baguette ring

Timeless and sophisticated design

Isabella オーバルカットサイドストーンリング | ラボグロウンダイヤモンド/ダイヤモンド 婚約指輪

Isabella side stone ring

An engagement ring with striking triangular trillion-cut diamonds on both sides, highlighting the brilliance of diamonds.

Kelly ラディアントカットソリティアリング | ラボグロウンダイヤモンド/ダイヤモンド 婚約指輪

Kelly solitaire ring

A classic ring with a simple single diamond. The cathedral setting gives it a graceful shape...

Kristen アッシャーヘイローリング ダイヤモンド/ラボグロウンダイヤモンド

Kristen Halo Ring

Classic and glamorous design with small melee stones in the center

Marie シークレットストーンヘイローリング クッションカットダイヤモンドリング ダイヤモンド/ラボグロウンダイヤモンド

Marie Secret Stone Ring

A special ring that allows you to add your favorite gemstone, such as a birthstone, to...

Maya パヴェリング マーキスカットダイヤモンドリング ダイヤモンド/ラボグロウンダイヤモンド

Maya Pavé Ring

A timeless pave ring with melee diamonds set into the band like cobblestones.

Sayuri ペアシェイプリング ダイヤモンド/ラボグロウンダイヤモンド

Sayuri accent ring

A delicate design with marquise cut diamonds on the ring

＜Price range＞　※This price covers everything—metal, setting, and all production costs.
1ct Lab-grow diamond ring：JPY300,000〜／0.5ctdiamond ring：JPY400,000〜

＜Available Metal Options＞Platinum・18K/14K/10K Yellow Gold・White Gold・Rose Gold
Engagement Ring Collection

婚約指輪を購入するにあたり、エシカルな理由からラボグロウンダイヤを取り扱う複数のお店やショールームを訪問しました。最後に訪れたのがDiallureです。


ダイヤの形、グレード、ベースリングのデザインに至るまで、婚約者の要望を丁寧にお聞きくださり、世界に一つだけの婚約指輪を作ってくださいました。

最初は婚約者の希望はハイブランドの婚約指輪でしたが、最終的にはDiallureがご提案する大きくて品質の高いダイヤとリングデザインに満足し、嬉しそうにしていて、いい思い出になりました。
avt1

Takashi

大粒ダイヤはずっと私の憧れでした。

彼と相談を重ね、いくつかのジュエラーの中からこちらにお願いすることに決めました。
デザインを考える際には、私の細かなこだわりや要望にも丁寧に耳を傾けてくださり、親身に相談に乗ってくださったことに感謝しています。
自分だけの指輪を少しずつ形にしていく楽しさを知ることができ、一生の思い出となりました。

仕上がりは想像以上の美しさで、信頼してこちらにお願いして本当に良かったと心から思いました。
彼も大変喜んでおり、二人の大切な宝物になりました。
ありがとうございました。
vat

Maho

diallureさんで私が1番理想としていた婚約指輪💍を作成していただきました！

他のブランドさんも検討しましたが、ダイヤモンドのサイズや、金額面で納得感のあるものではなかったので数ヶ月探していました。
そんな折、ラボグロウンのダイヤモンドがある事を知り全ての要望が叶うなら全く問題ない♪ とすぐに予約を取りました笑！
ナチュラルダイヤと迷われる方もいるかもしれませんが、私の目にはそれの区別は分かりませんでした！カットもとても綺麗です👍

カウンセリング時もとても丁寧に対応していただきました！他の名前を聞いたことあるお店と比べても全く遜色ありませんし、個別にしっかりヒアリングをしてくれて、むしろ安心感しかありませんでした👍

もし自分の理想のリングが他で見つからない方には、ぜひ一度diallureさんに問い合わせしてみて欲しいです。
私は諦めず、diallureさんに出会えて本当に良かったと思います！
avt1

M M

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What is Lab-grown diamond?

Lab-grown diamonds are real diamonds, identical in structure and brilliance to natural diamonds. They are cultivated in labs that replicate the same conditions found deep within the earth, resulting in diamonds that are chemically and physically identical to their natural counterparts. Among them, Type IIa diamonds—found in only 2% of natural diamonds—are exceptionally pure, with minimal impurities, offering a higher level of transparency and brilliance. Free from mining, and gentle on both the planet and its people, lab-grown diamonds have become a new standard in the U.S., now chosen for over half of all engagement rings. A diamond that shines not only with beauty, but also with integrity— that’s the kind of lab-grown diamond DIALLURE proudly selects for you.

Ranked in the Top 10

Ranked in the Top 10 across three categories on Ringraph, Japan’s leading engagement ring review site. Trusted and loved by many couples.

Lifetime Warranty

We offer lifetime support for everyday maintenance, including prong inspections and stone tightening.

Ethically Sourced Diamond

Natural diamonds sourced in compliance with the Kimberley Process, and eco-friendly lab-grown diamonds—both are choices that lead to a more sustainable future.

Thinking About Proposing?

Wedding Rings Couples Hands
Not sure what kind of design she'll love? Don’t worry—we’ve got you covered. “I want to propose with a ring.” “But I’d rather choose the final design after hearing what she really likes.” That’s exactly why we created the DIALLURE Proposal Ring Plan. First, select your preferred diamond shape, and we’ll prepare a special proposal ring in a temporary setting—just for that once-in-a-lifetime moment. After the proposal, you and your partner can choose the final ring design together, tailored to her style and your budget. A proposal that balances the joy of surprise with a ring that truly suits her— a thoughtful approach for couples today.
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1. Consultation

Our staff will carefully listen to your preferences and requests.

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2. Design

We thoughtfully transform your ideas into design sketches, bringing your unique vision to life.

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3. Confirm the 3D sample

A 3D sample allows you to visualize the finished ring in detail before we proceed.

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Jeweler Files Ring

4. Production

Each piece is carefully handcrafted by skilled artisans, with heartfelt attention to every detail.

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5. Your Ring is Complete

This is the moment you meet the one ring in the world that’s truly yours.

Create Your Own Ring

We offer a wide range of customization options—from subtle design adjustments to fully bespoke creations. With care and attention to every detail, we craft each piece to reflect your vision and the story you share as a couple.

Made-to-Order Engagement Rings

From a cherished photo sent by our customer, we’re honored to share a recent custom creation.
A singular ring by DIALLURE — set with a carefully chosen diamond, shaped with intention and grace. A lasting emblem of love, for life’s most unforgettable moments.
1.5カラットラディアントカットダイヤモンドリング
2.5カラットペアシェイプパヴェリング
マーキスカットラボグロウンダイヤモンドリング
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  1. Diamond Ring: 1.5ct Radiant Cut Pavé Ring
  2. Lab-Grown Diamond Ring: 2.5ct Pear Shape Pavé Ring
  3. Lab-Grown Diamond Ring: 2.5ct Marquise Cut Pavé Ring
  4. Lab-Grown Diamond Ring: 3ct Emerald Cut Three-Stone Ring

A Beautiful Choice for the Future

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At DIALLURE, we create jewelry with deep consideration for both environmental impact and social responsibility. Our lab-grown diamonds require no mining, and for natural diamonds, we only source carefully selected, traceable stones—so you can choose with confidence and peace of mind. We also use SCS-certified recycled metals for our rings, ensuring that even the materials reflect our commitment to sustainability. Because a ring meant to mark a meaningful milestone should be something you can feel proud of—inside and out. At DIALLURE, we value not only beauty, but also the integrity behind every choice you make.

Book an appointment

Reservations and inquiries are accepted 24 hours a day via LINE or our contact form below.
LINE
Contact Form

Access

Address:
NEUK Shirokane-Takanawa #206
1-20-2 Takanawa, Minato-ku, Tokyo 108-0074, Japan

Access:
6-minute walk from Shirokane-Takanawa Station (Toei Mita Line / Tokyo Metro Namboku Line)
13-minute walk from Sengakuji Station (Toei Asakusa Line / Keikyu Line)
5-minute taxi ride from Shinagawa Station (JR)

Opening Hours:
10:00 AM – 6:00 PM (By appointment only / Closed on Wednesdays and Thursdays)

Showroom
OUR STAFF
NEUK shirokanetakanawa