PRMAL - Lab-grown Diamonds & Ethical Fine Jewelry

All handcrafted in Japan

All handcrafted in Japan

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A Beautiful Choice.

Ethical Diamond Jewelry
[PRMAL]

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PRMAL - Bridal Collection

BRIDAL

PRMAL - Earring Collection

EARRING

PRMAL - Ring Collection

RING

PRMAL - Ear Cuff Collection

EAR CUFF

PRMAL - Necklace Collection

NECKLACE

PRMAL - Bracelet Collection

BRACELET

NEW IN

2ct Vertical Cushion Diamond Ring - PRMAL

2ct Vertical Cushion Diamond Ring - PRMAL

EG022TP20A#7

2ct Vertical Cushion Diamond Ring

SOLD OUT

Pear Half Eternity Ring - PRMAL

Pear Half Eternity Ring - PRMAL

01RDIA004C#9

Pear Half Eternity Ring

K10 | ¥226,600
K18 | ¥325,600

Marquise Half Eternity Ring - PRMAL

Marquise Half Eternity Ring - PRMAL

01RDIA006C#9

Marquise Half Eternity Ring

K10 | ¥213,400
K18 | ¥330,000

Oval Half Eternity Ring - PRMAL

Oval Half Eternity Ring - PRMAL

01RDIA005C#9

Oval Half Eternity Ring

K10 | ¥354,200
K18 | ¥474,100

Baguette Half Eternity Ring - PRMAL

Baguette Half Eternity Ring - PRMAL

01RDIA007C#9

Baguette Half Eternity Ring

K10 | ¥254,100
K18 | ¥378,400

Marquise Wave Double Finger Ring - PRMAL

Marquise Wave Double Finger Ring - PRMAL

01RDBF005C#S

Marquise Wave Double Finger Ring

K10 | ¥244,200
K18 | ¥396,000

Tennis Chain Drop Earring - PRMAL

Tennis Chain Drop Earring - PRMAL

01PTNB001C

Tennis Chain Drop Earring

K10 | ¥157,300
K18 | ¥227,700

Tennis Chain Necklace - PRMAL

Tennis Chain Necklace - PRMAL

01NTNB003C#38

Tennis Chain Necklace

K10 | ¥845,900
K18 | ¥1,171,500

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Find Pearls

Infinity Collection

TRENDING

Pave Dome Letter Charm - PRMAL

Pave Dome Letter Charm - PRMAL

01NLTR001C_A

Pave Dome Letter Charm

K10 | ¥116,600
K18 | ¥189,200

Massive Wave Ring - PRMAL

Massive Wave Ring - PRMAL

01RBSC033C#7

Massive Wave Ring

K10 | ¥149,600
K18 | ¥261,800

Wave Ring - PRMAL

Wave Ring - PRMAL

01RBSC031C#7

Wave Ring

K10 | ¥113,300
K18 | ¥195,800

Massive Wave Double Finger Ring - PRMAL

Massive Wave Double Finger Ring - PRMAL

01RDBF002C#S

Massive Wave Double Finger Ring

K10 | ¥176,000
K18 | ¥317,900

Infinity Massive Wave Diamond Ring - PRMAL

Infinity Massive Wave Diamond Ring - PRMAL

01RWAV003C#1

Infinity Massive Wave Diamond Ring

K10 | ¥229,900
K18 | ¥355,300

Sync Wave Pinky Ring - PRMAL

Sync Wave Pinky Ring - PRMAL

01RBSC056C#0

Sync Wave Pinky Ring

K10 | ¥168,300
K18 | ¥293,700

Limited-Time Order

Pearl Oval Ring - PRMAL

Pearl Oval Ring - PRMAL

01RBSC026C#3

Pearl Oval Ring

Sold Out

Limited-Time Order

Black Pearl Oval Ring - PRMAL

Black Pearl Oval Ring - PRMAL

01RBSC024C#3

Black Pearl Oval Ring

Sold Out

Box Chain Necklace - PRMAL

Box Chain Necklace - PRMAL

01NCHN004A#40

Box Chain Necklace

K18 | ¥223,300

Pave Dome Letter Earring - PRMAL

Pave Dome Letter Earring - PRMAL

01PLTR001C

Pave Dome Letter Earring

From ¥118,800

Lapse Diamond Wave Necklace - PRMAL

Lapse Diamond Wave Necklace - PRMAL

01NWAV001C

Lapse Diamond Wave Necklace

K10 | ¥151,800
K18 | ¥243,100

Wave Necklace - PRMAL

Wave Necklace - PRMAL

01NLIN007C

Wave Necklace

K10 | ¥148,500
K18 | ¥261,800

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Letter Series

Wave Collection

Pave Dome Letter Earring

Look 01

Pave Dome Letter Earring Box Chain Necklace

Marquise Half Eternity Ring

Look 02

Marquise Half Eternity Ring Marquise Wave Double Finger Ring

Look 03

Duo Pear Hoop Earring Duo Pear Peek Ear Cuff

Black Pearl Oval Earring M

Look 04

Black Pearl Oval Earring M

Duo Pear Bracelet

Look 05

Duo Pear Bracelet 0.3ct Pear Wave Pinky Ring

Silfra Band Ring

Look 06

Silfra Band Ring Silfra Pave Band Ring

Pave Dome Letter Earring

Look 07

Pave Dome Letter Earring

Look 08

Rock Earring S Rock Earring M Tennis Chain Necklace

Pear Wave Ear Cuff

Look 09

Pear Wave Ear Cuff Pear Wave Lay Ear Cuff Duo Pear Hoop Earring

About Us

Store

News

Trunk Show in Fukuoka & Osaka

July 29, 2026

Trunk Show in Fukuoka & Osaka

We will hold an order-taking event in the form of a trunk show, where you can shop for jewelry at your leisure in a relaxed atmosphere.

Instagram Live [Nature]

July 08, 2026

Instagram Live [Nature]

Introducing 10 new designs, including a bold half-eternity ring featuring a striking row of large diamonds, along with tennis earrings and necklaces.

Featured in VERY – August 2026 Issue

July 07, 2026

Featured in VERY – August 2026 Issue

PRMAL's items are featured in the jewelry feature of the August 2026 issue of VERY.

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Lab-Grown Diamonds

Alongside trusted gemstone experts, we select only the finest lab-grown diamonds sourced from top suppliers worldwide. Each stone is chosen with rigorous standards, delivering exceptional brilliance and enduring beauty.

Craftsmanship

Rooted in Kofu, Japan’s renowned jewelry-making region, each piece is meticulously crafted by skilled artisans. Their mastery of both traditional techniques and modern design ensures PRMAL’s uncompromising quality.

Shipping

We offer complimentary domestic shipping within Japan and secure international delivery worldwide. Every order is handled with care and delivered responsibly to our customers.

After-Sales Support

From resizing and cleaning to repairs, our dedicated support team provides attentive after-care. We offer a comprehensive maintenance program to ensure your jewelry stays beautiful for years to come.

A Beautiful Choice.

This point service allows you to use 1 point for 1 JPY worth of purchases.

The exchange rate at the time of point use will apply.

Regardless of the timing of membership registration, points are valid for one year from the date of the last point award.

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Chat with us on LINE (10:00-18:00 JST)Book a showroom fitting

This service is only available in Japan.

Pay later, 6 installments, and payment at convenience stores are available through Paidy Payment.

Select "Paidy" payment method on the checkout page after adding to the cart.

After the order is confirmed, production will begin for made-to-order items, and in-stock items will be shipped.

Need support? We're here to help.

Chat with us on LINE (10:00-18:00 JST)