What are Lab-Grown Diamonds? / Lab-Grown Diamonds | BRIGHT & BREEZY Official Online Store – BRIGHT & BREEZY

LAB-GROWN DIAMONDS

What Are Lab-Grown Diamonds?

While natural diamonds are formed deep underground, lab-grown diamonds (also known as synthetic or man-made diamonds) are created above ground in laboratories. Apart from the environment in which they are produced, they share the same composition and properties as natural diamonds and are different from simulants such as moissanite or cubic zirconia.

Learn About Lab-Grown Diamonds
- Four Key Points -

- 1 -
ELEMENT

Composition of Lab-Grown Diamonds

Lab-grown diamonds have the same composition as natural diamonds—they are genuine diamonds. Their beauty is on par with natural diamonds, and even professional graders cannot tell them apart with the naked eye. Only with advanced instrumentation can subtle differences in growth patterns or inclusions be distinguished.

Individuality in Lab-Grown Diamonds

Being grown in a lab does not mean mass-produced uniform quality. As with natural diamonds, size and color vary from stone to stone, and not all are high grade. By cutting and polishing each rough stone to bring out its brilliance—just as with natural diamonds—each gem shines uniquely. We select stones with CUT of GOOD or higher, CLARITY of VS2 or higher, and COLOR of F or higher. Other grades can be prepared upon request. For our 4C standards, please see Quality Standards.
- 2 -
HOW TO

How Lab-Grown Diamonds Are Made

There are two primary methods for growing diamonds in a lab.
- CVD
  
  In the newer Chemical Vapor Deposition (CVD) method, carbon-bearing gas is deposited onto a thin diamond seed, growing diamond crystal layer by layer. “CVD” stands for Chemical Vapor Deposition.
- HPHT
  
  A long-studied method that replicates the high-pressure, high-temperature conditions under which natural diamonds form underground, producing diamond crystals from carbon sources. “HPHT” stands for high-pressure, high-temperature.
- HPHT
  
  A long-studied method that replicates the high-pressure, high-temperature conditions under which natural diamonds form underground, producing diamond crystals from carbon sources. “HPHT” stands for high-pressure, high-temperature.
Both methods are widely used today. For large, high-clarity colorless diamonds and fancy-colored stones, CVD is often more suitable.
- 3 -
PRICE

Price of Lab-Grown Diamonds

Lab-grown diamonds are typically one-half to one-third the price of natural diamonds. You might allocate the savings to your wedding, travel, or beauty—or choose a larger lab-grown stone within the same budget. For details, see our Transparent Pricing page.
- 4 -
ENVIRONMENT

Lab-Grown Diamonds and the Environment

Lab-Grown Diamonds = A Smart Choice

With identical composition and certification-backed quality, lab-grown diamonds are, we believe, a smart choice for today.

Some choose a larger diamond than first planned; others put the savings toward a honeymoon or home. You can opt for lab-grown with environmental and labor considerations—or choose natural if that’s your preference. Lab-grown diamonds simply expand your options. Please also see our Customer Reviews.

FAQ / よくあるご質問

ラボグロウンダイヤモンドとは何ですか？

ラボグロウンダイヤモンドは、地球ではなくラボ（研究所）で生成される本物のダイヤモンドです。化学的・物理的性質は天然ダイヤモンドと全く同じで、専門機関の鑑定でも「ダイヤモンド」として分類されます。
「合成ダイヤモンド」「人工ダイヤモンド」「ラボダイヤ」などと呼ばれることもありますが、いずれも同じ意味で、本質的には天然と同一の物質です。科学の進歩で本物のダイヤモンドを育てたと解釈して頂けると嬉しいです。