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Eternal Sparkle.
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Choose Your Perfect Diamond — Natural or Lab-Grown
DIALLURE Engagement Rings Offer Both Options
Choose Freely
Choose Freely
What DIALLURE offers is a new,
liberated vision of engagement rings—beyond conventional expectations.
From the coveted one-carat-and-above diamonds,
to distinctive fancy shapes that express your individuality,
to the new choice of lab-grown diamonds.
The sparkle you choose reflects the life you envision together.
A brilliance that speaks to the modern eye—
from Shirokane-Takanawa, Tokyo to you.
We offer many more designs beyond those shown here.
We invite you to book an appointment and visit our showroom at your convenience.
DIALLURE is a bridal jewelry brand that brings your vision to life through refined design and uncompromising quality.
an extensive lineup to fulfill your vision
Fancy Shape Diamonds
In addition to the classic round brilliant cut, we offer a wide selection of distinctive fancy shape diamonds—
such as emerald, pear, and oval—sourced directly from overseas.
By combining larger one-carat-and-above stones with distinctive cuts, we create a style that is uniquely yours.
A selection that aligns with your values and your budget
Lab-grown & Natural Diamonds
At DIALLURE, we offer both ethically sourced lab-grown diamonds—scientifically identical in brilliance to natural diamonds—and rare natural conflict-free diamonds.
Without favoring one over the other, we guide you to the perfect stone that reflects your values and budget.
Whichever you choose, there is no compromise in quality or brilliance.
Custom Made
In addition to our refined collection, we offer full custom and semi-custom options, allowing you to combine designs to your preference.
We bring your finest details to life, creating a one-of-a-kind ring that is uniquely yours.
You can choose according to your preferences.
Diamond Shape
Diamond Type
(Natural or Lab-Grown)
The 4Cs of Diamonds
Ring Materials
experience brilliance with all your senses
Shirokane-Takanawa Showroom
Our showroom in Shirokane-Takanawa offers a calm and refined atmosphere, where you can fully experience
the depth of a diamond’s brilliance and the intricacy of its design—something that cannot be conveyed through a screen.
Our certified diamond experts will sincerely support you in choosing the perfect ring for your special moment.
Customer Reviews
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The Journey to Your Engagement Ring
As engagement rings are made to order, please allow 10–12 weeks from purchase to delivery.
We recommend preparing well in advance.
Consultation & Proposal at the Showroom
Please visit our Shirokane-Takanawa showroom at your reserved time.
Our experienced staff, certified as diamond experts, will carefully listen to your wishes and preferences.
"In addition to our existing collection, we offer a wide range of options—from semi-custom to fully bespoke designs—
allowing you to experience the comfort, craftsmanship, and carefully selected diamonds and rings firsthand."
・By Appointment Only
Book an Appointment
・Compare Lab-Grown and Natural Diamonds in Person
・You can also view diamonds of one carat and above in person.
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Final Selection & Crafting
By carefully aligning your preferences for design, materials, and overall balance, we transform your vision into a design sketch and guide it toward its ideal form.
Cherishing every step of the journey, our skilled artisans meticulously craft a one-of-a-kind ring, made just for you.
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Receive Your Engagement Ring
We invite you to look forward to the completion of your order. Please visit our showroom on your scheduled pickup date.
Diamond Grading Report
For center diamonds of 0.3 carats or more, each stone is accompanied by a grading report issued by a globally recognized authority such as GIA or IGI.
We also offer complimentary resizing for one year from the date of delivery.
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Showroom Information
Address
NEUK Shirokanetakanawa 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 Main Line)
・5 minutes by taxi from Shinagawa Station (JR Lines)
Business Hours
10:00–18:00 (By appointment only / Closed on Mondays, Tuesdays, and public holidays)
You’re welcome to visit us even if you haven’t decided on a purchase. Please feel free to stop by.
Why Choose US?
Over a Decade of Refined Expertise
At the heart of DIALLURE lies a proven track record of working with imported bridal jewelry since our founding in 2015.
Building on this foundation, we evolved in 2023 into an engagement ring brand that embraces the modern choice of lab-grown diamonds.
This continuity is a testament to our trust.
With a discerning eye refined over years, we carefully select only the finest brilliance worthy of a lifetime.
As a pioneer in Japan, we hold a unique position of expertise in both origins.
This allows us to guide you with a truly unbiased perspective, found nowhere else.
Whether it is the ethical allure and impressive scale of lab-grown diamonds, or the timeless rarity of natural diamonds, we provide a deep, essential understanding of each from the core.
With a professional and unbiased perspective, we support you in making the choice that feels right for you—guiding you to the one stone that best reflects your vision.
Lifetime Warranty Service
Even after your purchase, we provide lifetime support for maintenance, including resizing and cleaning.
From minor adjustments to routine maintenance, we ensure that you can wear your cherished ring with peace of mind for a lifetime.
At our showroom, see the brilliance for yourself and choose with absolute confidence
Because it is a treasure for a lifetime, see it with your own eyes in the end.
"Our fully private, by-appointment-only showroom in Shirokane-Takanawa offers a serene space
where you can fully appreciate the brilliance of one-carat-and-above diamonds without distraction."
Our experts provide thoughtful guidance for every guest, including those visiting on their own.
In a calm and refined setting, experience the true emotion of authenticity—something that cannot be conveyed through a screen.
The lab-grown diamonds we use are composed of the same elements as natural diamonds,
offering a pure and beautiful brilliance free from impurities.
The lab-grown diamonds we use are composed of the same elements as natural diamonds, offering a pure and beautiful brilliance free from impurities.
What Are Lab-Grown Diamonds?
Lab-grown diamonds are real diamonds with exactly the same composition and structure as natural ones.
They are evaluated by grading institutions using the same standards as natural diamonds.
The reason they are chosen for engagement rings lies in their exceptional beauty and value.
"Within your budget, you can realize the dream of a one-carat-or-larger diamond without compromise—
and enjoy the rare ‘Type IIa’ brilliance, found in only 2% of natural diamonds."
With its ethical background, this diamond offers a perfect balance of aspiration and informed choice—bringing a true sense of satisfaction to couples who seek both.
The Same Composition as Natural Diamonds— True, Authentic brilliance.
Created through a scientific process in a laboratory, these are real diamonds with the same structure and brilliance as natural diamonds.
Their physical and optical properties are completely identical, and as they are certified by internationally recognized grading institutions,
their lifelong brilliance is assured with trusted quality.
A Commitment to the Environment—for Our Planet and the Future
Unlike conventional diamonds that require large-scale mining, lab-grown diamonds are created in a laboratory, resulting in a significantly lower environmental impact.
They help reduce water pollution, soil degradation, and environmental impact on ecosystems—achieving both exceptional brilliance and a more sustainable society.
An ethical choice you can be proud to pass on to future generations.
Clean and Transparent Ethical Value
Diamonds created in a laboratory are entirely free from historical issues such as conflict and human rights concerns, representing a truly ethical choice.
With its pure and transparent origins, this brilliance brings a sense of reassurance worthy of your vows.
As a sustainable choice that is gentle on the future of our planet, it also allows you to realize your ideal design.
FAQ
We offer many more designs beyond those shown here.
We invite you to book an appointment and visit our showroom at your convenience.
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