Diamond Equivalent

What are lab-grown diamonds?

Natural diamonds and the same diamonds.

Chemical composition, crystal structure, hardness, and brilliance. These are real diamonds, proven by their numerical values.

Pure Diamond

How Diamonds Are Formed

Natural diamonds are formed deep within the Earth's mantle over hundreds of millions of years under high-temperature and high-pressure conditions.

Lab-grown diamonds are diamonds grown over several weeks in a research facility, where their formation environment is replicated using cutting-edge technology.

Clear Diamond

Types of Diamonds

Diamonds are categorized into Type I and Type II based on the type and amount of impurities they contain. Type IIa diamonds are rare, considered the most transparent, and contain very few impurities.

At FAUNA, we are uncompromising about the brilliance of each individual stone, which is why we meticulously select and use only Type IIa lab-grown diamonds.

Ethical & Clean Diamond

Why Choose Lab-Grown Diamonds?

Lab-grown diamonds are attracting attention not only for their beauty and quality, but also for new values such as environmental consideration, transparency, human rights consideration, and sustainability.

Fair Diamond

Reasons for Significant Price Differences

Lab-grown diamonds are priced at about one-fifth the cost of natural diamonds. This difference is not due to quality, but rather to the difference in market structure.

In the natural diamond market, prices are kept high due to supply control and complex distribution structures, as well as a limited supply of high-quality rough stones and cut grades.

On the other hand, lab-grown diamonds are priced in a transparent market based on supply and demand, allowing them to offer diamonds of equivalent quality at a more reasonable price.

Authentic Diamond

Appraisal report

All diamonds, with the exception of melee diamonds, are certified by IGI, one of the world's leading appraisal institutions, objectively proving their quality.

Furthermore, FAUNA issues a FAUNA Authenticity Certificate with an individual identification number after inspecting the diamond according to its own quality standards. We deliver each diamond with both third-party appraisal and brand-specific quality assurance.

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The Highest

World-class diamond quality

The beauty of a single gem is not a matter of chance.

At FAUNA, we set strict standards for color, clarity, cut, and size, **selecting only the highest-grade gems in the world.** We make no compromises in order to deliver genuine brilliance at a fair price. That is the FAUNA STANDARD.

クリエイティブ・ダイヤモンド

Color variations

One of the appealing aspects of lab-grown diamonds is their ability to produce a diverse range of colored diamonds, including rare pink, blue, and yellow hues that are scarce in nature.

FAUNA plans to expand its collection to include colored diamonds in the future, allowing for greater freedom in jewelry expression.

To see the brilliance