Products – Page 2 – Precious Lab

Japan's Leading Lab-Grown Diamond Jeweler

Free Insured Shipping Worldwide

Easy Returns · 30-Day Money-Back

0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

Regular price ¥31,821 JPY

Sale price ¥31,821 JPY Regular price
Unit price per
0.31 Ct. D Color VS2 Clarity Round Shape Lab Grown Diamond

Regular price ¥31,821 JPY

Sale price ¥31,821 JPY Regular price
Unit price per
0.31 Ct. D Color VVS2 Clarity Marquise Shape Lab Grown Diamond

Regular price ¥33,762 JPY

Sale price ¥33,762 JPY Regular price
Unit price per
0.31 Ct. D Color VVS2 Clarity Oval Shape Lab Grown Diamond

Regular price ¥34,173 JPY

Sale price ¥34,173 JPY Regular price
Unit price per
0.31 Ct. E Color VS1 Clarity Heart Shape Lab Grown Diamond

Regular price ¥34,143 JPY

Sale price ¥34,143 JPY Regular price
Unit price per
0.31 Ct. E Color VS2 Clarity Round Shape Lab Grown Diamond

Regular price ¥33,091 JPY

Sale price ¥33,091 JPY Regular price
Unit price per
0.32 Ct. Brown Color VS2 Clarity Heart Shape Lab Grown Fancy Diamond

Regular price ¥39,016 JPY

Sale price ¥39,016 JPY Regular price
Unit price per
0.32 Ct. D Color SI1 Clarity Round Shape Lab Grown Diamond

Regular price ¥34,548 JPY

Sale price ¥34,548 JPY Regular price
Unit price per
0.32 Ct. D Color SI1 Clarity Round Shape Lab Grown Diamond

Regular price ¥34,548 JPY

Sale price ¥34,548 JPY Regular price
Unit price per
0.32 Ct. D Color VS1 Clarity Oval Shape Lab Grown Diamond

Regular price ¥81,238 JPY

Sale price ¥81,238 JPY Regular price
Unit price per
0.32 Ct. D Color VS1 Clarity Round Shape Lab Grown Diamond

Regular price ¥31,011 JPY

Sale price ¥31,011 JPY Regular price
Unit price per
0.32 Ct. D Color VVS2 Clarity Emerald Shape Lab Grown Diamond

Regular price ¥35,282 JPY

Sale price ¥35,282 JPY Regular price
Unit price per
0.32 Ct. D Color VVS2 Clarity Emerald Shape Lab Grown Diamond

Regular price ¥35,282 JPY

Sale price ¥35,282 JPY Regular price
Unit price per
0.32 Ct. D Color VVS2 Clarity Emerald Shape Lab Grown Diamond

Regular price ¥35,282 JPY

Sale price ¥35,282 JPY Regular price
Unit price per
0.32 Ct. D Color VVS2 Clarity Pear Shape Lab Grown Diamond

Regular price ¥34,615 JPY

Sale price ¥34,615 JPY Regular price
Unit price per
0.32 Ct. D Color VVS2 Clarity Radiant Shape Lab Grown Diamond

Regular price ¥45,632 JPY

Sale price ¥45,632 JPY Regular price
Unit price per

Create A Truly Bespoke Ring

Customize rings using hand-picked lab grown diamonds from Japan’s top sources. Choose your cut, setting, and metal to create a ring that’s uniquely yours.

Trusted Advice

Over 30 years of experience in Japanese jewelry craftsmanship, our jewelers provide personalized consultations on diamond selection and custom designs.

Buy With Confidence

Shop our certified selection of lab grown diamond jewelry with transparency, detailed specifications, and lifetime guarantees.

Sourced With Care

Every diamond is crafted with sustainability and ethical practices in mind—because luxury should never come at the planet’s expense.