Lab-Grown Sapphire (Synthetic Sapphire): Price, Difference from Natural Sapphire and Engagement Rings

A lab-grown sapphire is a real sapphire, made by people: at Laveran, a blue synthetic sapphire engagement ring costs from €800, and €1,424 with a 1-carat center stone. Chemically, it is exactly the same stone as a natural sapphire: aluminum oxide, colored blue by traces of iron and titanium. This guide explains how it differs from a natural sapphire, how to tell a real sapphire, what a synthetic sapphire costs, which blue sapphire ring to choose, and whether to pick a sapphire or a diamond.

Contents

• What is a lab-grown sapphire?
• Synthetic sapphire vs. natural sapphire: what is the difference?
• How can you tell a real sapphire?
• How much does a synthetic sapphire cost?
• Which sapphire engagement ring should you choose?
• Light blue, dark blue or royal blue sapphire: which color to choose?
• What does a blue sapphire engagement ring mean?
• Sapphire or lab-grown diamond for an engagement ring?
• FAQ

What is a lab-grown sapphire?

A lab-grown sapphire is blue corundum crystallized in a laboratory, not an imitation. Sapphire belongs to the corundum family, like ruby: it is aluminum oxide (Al₂O₃). Its blue color comes from traces of iron and titanium trapped in the crystal. In the lab, these same elements are brought together and the very high-temperature conditions that allow the crystal to form are recreated. The result has the same chemical composition, the same crystal structure and the same hardness as a mined stone.

The terms lab-grown sapphire, synthetic sapphire, lab-created sapphire and man-made sapphire all mean the same stone. Making it is nothing new. The flame-fusion process developed by French chemist Auguste Verneuil in the early 20th century is still used to produce synthetic corundum (source). You may already wear some without knowing it: the “sapphire crystal” on high-end watches is synthetic sapphire, chosen for its scratch resistance.

Do not confuse it with an imitation (blue glass, colored cubic zirconia), which has neither the composition nor the hardness of a sapphire.

Synthetic sapphire vs. natural sapphire: what is the difference?

The only real difference is the origin, and therefore the price. To the naked eye, a lab-grown sapphire and a natural sapphire of the same color are impossible to tell apart. Here is what changes, and what does not:

The price of a natural sapphire depends above all on its color and its history. An intense, unheated blue sapphire from Kashmir, Myanmar or Ceylon is in a different league from a treated light sapphire. Shades, origins and symbolism of natural sapphire: read our guide blue sapphire: a precious stone of incomparable color and brilliance.

How can you tell a real sapphire?

With the naked eye, you can’t tell a synthetic sapphire from a natural one: only an equipped gemologist can. Under the microscope, they examine the inclusions and growth lines of the crystal. A natural sapphire often shows fine needles called “silk” or color zoning; a synthetic sapphire may show curved growth lines or tiny gas bubbles.

Three things to keep in mind before buying a sapphire ring:

• A “real sapphire” is not necessarily natural: a lab-grown sapphire is a real sapphire. A fake sapphire is an imitation (glass, a stone from another family).
• A reputable seller always discloses the origin of the stone. At Laveran, every product page clearly states “synthetic blue sapphire.”
• A very low price for a large “natural sapphire” should make you wary: ask for a report from an independent gemological laboratory.

Want to see a lab-grown sapphire on the finger? In our 11 showrooms or by video call, an expert shows you settings and stone sizes side by side. Sapphire engagement rings from €800. Book an appointment →

How much does a synthetic sapphire cost?

At Laveran, a lab-grown sapphire engagement ring costs from €800 (0.30 carat) to €4,260 (5 carats), depending on the setting and the weight of the stone. A 1-carat synthetic sapphire set as a solitaire costs €1,424. Here are the actual prices of our four families of blue sapphire rings, as of October 2026:

These prices cover the whole ring: the sapphire, the 18k gold or platinum setting, and the lab-grown diamonds of the pavé or halo. They are the same in white gold, yellow gold, rose gold and platinum 950: at Laveran, platinum costs the same as gold. Installment payments are available with Alma.

In a lab, a beautiful blue is not a rarity: the price gap with a natural sapphire therefore grows with the size of the stone.

Which sapphire engagement ring should you choose?

A solitaire showcases the sapphire’s blue; a diamond halo makes it brighter. Both are safe choices; it all depends on the look you want.

• The six-prong solitaire, simple and timeless, with a slim plain band: nothing distracts from the color. Palais Royal blue sapphire ring, from €800.
• The pavé band, for a sapphire and diamond ring that sparkles along the shoulders: Vendôme oval sapphire ring, from €1,200.
• The halo, a circle of lab-grown diamonds around the sapphire, the classic silhouette of the blue sapphire engagement ring: Odéon oval sapphire ring, from €1,400.
• The double halo, two rows of diamonds for a very bright ring: Odéon double halo sapphire, from €1,500.

Oval, round, cushion, pear or emerald-cut sapphire?

Oval is one of the most requested shapes for a sapphire ring: it elongates the finger and looks larger for the same weight. Round is the most classic, cushion softer and more vintage, pear more original, emerald cut more graphic. At Laveran, lab-grown sapphires come in round, oval, cushion, pear, emerald and marquise cuts depending on the model, from 0.30 to 5 carats.

White gold, yellow gold or platinum with a sapphire?

White gold and platinum make the blue stand out by contrast; yellow gold warms it. A white gold sapphire ring looks crisp and bright; a yellow gold blue sapphire ring has more of a vintage jewelry feel. Platinum 950 stays white without special care, at the same price as gold. Rose gold, less common with sapphire, creates a soft, original contrast.

All our sapphire, ruby and emerald rings are gathered in the precious stones collection.

Light blue, dark blue or royal blue sapphire: which color to choose?

Royal blue, intense without being dark, is the benchmark color for a sapphire engagement ring. It is the shade of our lab-grown sapphires. In nature, blue sapphire covers a wide palette:

• Light blue sapphire or sky blue, bright and pastel, often associated with Ceylon sapphire (Sri Lanka);
• Royal blue sapphire, saturated and vivid, the reference in fine jewelry;
• Dark blue sapphire or midnight blue, deeper, which can look almost black in low light;
• Cornflower blue sapphire, a velvety, slightly violet blue, famous for stones from Kashmir.

Light or dark blue sapphire? Blue that is too dark loses its sparkle in the evening, and blue that is too pale looks washed out next to white diamonds: royal blue stays beautiful in any light. Sapphires also come in pink, yellow, orange or white, but blue sapphire remains the classic choice for an engagement ring.

What does a blue sapphire engagement ring mean?

Blue sapphire symbolizes fidelity, loyalty and wisdom: in love, it is the stone of sincere commitment. Its name is thought to come from the Greek sappheiros, “blue stone.” It is also the birthstone for September. The sapphire engagement ring surrounded by diamonds became famous worldwide in 1981, with Lady Diana’s.

Choosing a sapphire ring means choosing a ring that gets noticed and is strong enough to be worn every day. The symbolism of blue sapphire is covered in our article on the meaning of blue sapphire, and its red cousin in our guide to lab-grown ruby.

Sapphire or lab-grown diamond for an engagement ring?

Diamond is harder and more brilliant; sapphire brings color and costs a little less for the same weight. Both handle daily wear easily. Comparison on a 1-carat solitaire, Laveran prices as of October 2026:

Can’t decide? A halo brings both together: a sapphire in the center, surrounded by lab-grown diamonds.

FAQ

Is a synthetic sapphire a real sapphire?

Yes. A synthetic sapphire, or lab-grown sapphire, is blue corundum: same chemical composition, same crystal structure and same hardness as a natural sapphire. Only its origin differs. A “fake sapphire” is an imitation made of another material.

How much does a 1-carat sapphire cost?

At Laveran, a solitaire ring with a 1-carat lab-grown sapphire costs €1,424, including the 18k gold or platinum setting. With a diamond halo, it is €2,024. The price of a 1-carat natural sapphire varies enormously with its color, origin and treatments.

How can you tell if a sapphire is synthetic?

Not with the naked eye. Only a gemologist, using a microscope, can identify the origin from the inclusions and growth lines of the crystal. The simplest approach is to buy from a seller who clearly states the origin of the stone.

Does a lab-grown sapphire lose its color over time?

No. Its color comes from the iron and titanium in the crystal, just like a natural sapphire. It is stable and does not fade with wear.

How hard is sapphire?

Sapphire reaches 9 on the Mohs scale, just behind diamond (10). That makes it one of the few colored stones suited to a ring worn every day.

Is sapphire suitable for an engagement ring?

Yes. Its hardness, color and symbolism of fidelity make it one of the most popular alternatives to diamond. It works on its own as a solitaire or surrounded by diamonds.

How long does it take to receive a sapphire ring?

Each ring is made to order in 2 to 3 weeks; some models can be made in a few days with express production. For a Christmas proposal, order before the end of November. The exact lead time is confirmed at your appointment, and delivery is free, insured and hand-delivered.

What guarantees come with a Laveran sapphire ring?

A lifetime warranty, free lifetime resizing, free lifetime polishing and prong checks, and returns accepted within 30 days. With a hardness of 9 out of 10, sapphire handles daily wear very well.

A sapphire engagement ring gives you the blue of a precious stone for the price of a classic ring. Come and compare settings, shapes and sapphire sizes in one of our 11 showrooms or by video call: an expert will help you find the ring that suits her.

Book an appointment → · See sapphire rings →