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round cut lab grown ruby
round cut lab grown ruby 1
4 mm
5 mm
+8
6 mm
6.5 mm
7 mm
7.5 mm
8 mm
8.5 mm
9 mm
10 mm

Round Cut Lab Grown Ruby

$11.70 – $156.00
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cushion cut lab grown ruby
cushion cut lab grown ruby 1
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm

Cushion Cut Lab Grown Ruby

$23.40 – $195.00
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emerald cut lab grown ruby
emerald cut lab grown ruby 1
6 x 4 mm
7 x 5 mm
+6
8 x 6 mm
9 x 7 mm
10 x 8 mm
11 x 9 mm
12 x 10 mm
14 x 10 mm

Emerald Cut Lab Grown Ruby

$31.20 – $390.00
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heart cut lab grown ruby
heart cut lab grown ruby 1
5 x 5 mm
6 x 6 mm
+5
6.5 x 6.5 mm
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm

Heart Cut Lab Grown Ruby

$19.50 – $156.00
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long cushion cut lab grown ruby
long cushion cut lab grown ruby 1
6 x 4 mm
7 x 5 mm
+6
8 x 6 mm
9 x 7 mm
10 x 8 mm
11 x 9 mm
12 x 10 mm
14 x 10 mm

Long Cushion Cut Lab Grown Ruby

$31.20 – $390.00
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oval cut lab grown ruby
oval cut lab grown ruby 1
6 x 4 mm
7 x 5 mm
+7
8 x 6 mm
9 x 7 mm
10 x 8 mm
11 x 9 mm
12 x 10 mm
12 x 8 mm
14 x 10 mm

Oval Cut Lab Grown Ruby

$19.50 – $312.00
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pear cut lab grown ruby
pear cut lab grown ruby 1
7 x 5 mm
8 x 6 mm
+4
8 x 5 mm
9 x 6 mm
10 x 7 mm
12 x 8 mm

Pear Cut Lab Grown Ruby

$31.20 – $156.00
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princess cut lab grown ruby
princess cut lab grown ruby 1
5 x 5 mm
5.5 x 5.5 mm
+6
6 x 6 mm
6.5 x 6.5 mm
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm

Princess Cut Lab Grown Ruby

$31.20 – $234.00
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Lab Grown Rubies

There’s something timeless about the deep red of a ruby. It speaks of love, strength, and bold elegance. Our lab-grown rubies capture that same fiery essence—without the environmental toll or ethical concerns of traditional mining.

Each stone in our collection is created in a state-of-the-art lab using advanced methods that mirror nature’s own process. The result? Stunning, vivid red rubies that are chemically identical to mined gems, but often even more brilliant and free from flaws.

Made from genuine corundum and boasting a hardness of 9 on the Mohs scale, these rubies are built to last—just like the moments they’ll commemorate. Whether you’re designing an engagement ring, anniversary gift, or a statement piece just for you, our lab-created rubies offer unmatched value and peace of mind.

Explore a range of cuts and sizes to find the perfect match for your vision. With Carat Island, beauty and ethics go hand in hand.

Frequently Asked Questions (FAQs)

Q1: Are lab-grown rubies real rubies?

Absolutely. Lab-grown rubies are 100% real rubies. They are not imitations or fakes. They have the exact same chemical composition (corundum), physical properties (9 Mohs hardness), and optical brilliance as a ruby that was mined from the earth. The only difference is their origin.

Q2: How are lab rubies created?

Lab rubies are grown using advanced technological processes that replicate the natural conditions under which rubies form. Common methods include:

  • Pulled (Czochralski) Method: A seed crystal is dipped into a molten crucible of aluminum oxide and chromium (the elements of ruby) and slowly pulled upwards as it grows into a large, high-quality crystal.

  • Flux-Growth: A ruby "seed" is placed in a solution of molten flux and nutrients. Over time, the ruby crystal grows, similar to how sugar crystals form in water.

  • Flame Fusion: Powdered aluminum oxide is dropped through a high-temperature flame, melting it onto a rotating pedestal to form a crystal.

Q3: What is the difference between a lab-grown ruby and a mined ruby?

The primary differences are origin and price.

  • Origin: One is grown in a controlled lab setting, while the other is extracted from the earth.

  • Clarity: Lab-grown rubies are typically free from the inclusions and fractures often found in mined rubies, making them visually more "perfect."

  • Price: Because the supply chain is shorter and the process is more efficient, lab-grown rubies are significantly more affordable than mined rubies of comparable size and quality.

  • Ethics: Our lab-grown rubies are a guaranteed conflict-free and environmentally friendly choice.

Q4: Why should I choose a lab-grown ruby?

Choosing a lab-grown ruby offers three main advantages:

  • Value: You get a visually superior, higher-clarity stone for a much lower price.

  • Beauty: They exhibit a consistently vibrant and rich red color that is highly sought after.

  • Peace of Mind: You can be certain your gemstone is ethically sourced and has a minimal environmental impact.

Q5: Are lab-created rubies durable enough for everyday wear?

Yes. With a hardness of 9 on the Mohs scale, rubies are second only to diamonds in terms of hardness and scratch resistance. This makes a lab-grown ruby an exceptionally durable choice that is perfectly suited for engagement rings and other jewelry worn daily.

Q6: How do I care for my lab-grown ruby jewelry?

You can care for a lab-grown ruby the same way you would a natural one. Clean it gently with warm, soapy water and a soft brush. Professional ultrasonic cleaners are also generally safe, but it's always best to consult with your jeweler.