Lab Grown Sapphire: What It Is & How It Compares

Sapphire has been a favorite gemstone for centuries. It's the birthstone for September, the traditional stone for 45th wedding anniversaries, and a popular choice for engagement rings. But not all sapphires are mined from the earth. Lab grown sapphires offer the same beauty and durability at a more accessible price.

This guide explains what a lab grown sapphire is, how it's made, and how it compares to natural sapphire and lab grown diamond.

What Is a Lab Grown Sapphire?

A lab grown sapphire is a sapphire that is created in a controlled laboratory environment instead of being mined from the earth. It has the same chemical composition, crystal structure, and optical properties as a natural sapphire.

Lab grown sapphires are made of corundum (aluminum oxide), the same mineral as natural sapphire. The difference is origin: natural sapphires form underground over millions of years, while lab grown sapphires are created in a matter of weeks.

Like lab grown diamonds, lab grown sapphires are real gemstones. They're not simulants or imitations. They're sapphires that were grown in a lab.

How Are Lab Grown Sapphires Made?

Lab grown sapphires are created using a method called the Verneuil process, also known as flame fusion. Here's how it works:

1. Aluminum oxide powder is melted. The powder is fed through a high-temperature flame.

2. The molten material crystallizes. As the material cools, it forms a crystalline structure.

3. The crystal grows into a boule. Over several hours, a cylindrical crystal (called a boule) forms.

4. The boule is cut and polished. The resulting sapphire is cut into gemstones for jewelry.

The result is a sapphire with the same chemical composition and durability as a natural sapphire.

Lab Grown Sapphire vs Natural Sapphire

The main difference is origin and price. Lab grown sapphires cost significantly less than natural sapphires of the same quality. They're also more environmentally friendly, since they don't require mining.

Lab Grown Sapphire vs Lab Grown Diamond

If you're choosing between a lab grown sapphire and a lab grown diamond, here's how they compare:

Sapphire is a popular choice for engagement rings because of its color and durability. Diamond is the traditional choice and offers more brilliance. Both are excellent options.

At Ecglosty, we specialize in lab grown diamonds. Every stone is IGI certified and available in 14K or 18K white gold, yellow gold, rose gold, or platinum.

Why Choose a Lab Grown Sapphire?

Lab grown sapphires offer several advantages:

• Affordability — They cost less than natural sapphires of the same quality.

• Ethical sourcing — No mining required, so no environmental or ethical concerns.

• Durability — They rank 9/10 on the Mohs hardness scale, making them suitable for everyday wear.

• Color options — Lab grown sapphires are available in a range of colors, including blue, pink, yellow, and white.

If you love the look of sapphire but want a more affordable and sustainable option, a lab grown sapphire is a good choice.

Are Lab Grown Sapphires Certified?

Lab grown sapphires can be certified by independent gemological laboratories, though certification is less common than for diamonds. Some labs grade sapphires on color, clarity, and cut.

At Ecglosty, we specialize in lab grown diamonds, and every stone is IGI certified. If you're interested in a lab grown sapphire, contact us to discuss custom options.

Final Thoughts

A lab grown sapphire is a real sapphire that's created in a lab instead of mined from the earth. It has the same chemical composition, durability, and beauty as a natural sapphire, at a more accessible price.

If you're looking for a lab grown diamond instead, browse our collection. Every stone is IGI certified and available in a full range of metals.

Information current as of October 2026