Discover BIRON® Gems
Lab Grown Alexandrite : Colour Changing Wonder
The BIRON® Alexandrite

Photo Credit: Inter-pacific
Jewellers affectionately call alexandrite an “emerald by day and ruby by night” because of how it changes colour in different light conditions. With a bright lustre and incredibly rare colour-changing properties, alexandrite is one of the most desired and valuable gemstones on the planet.
But, you already know getting your hands on high-quality alexandrite is difficult.
Natural stones are harder and harder to come by, and the lab-grown market is just as difficult to navigate with resellers and manufacturers flooding the market with stones that vary in grade, quality and price.
If you get stuck with lab-grown alexandrite that isn’t the right colour or does not provide your desired colour change, you can’t bring your designs to life. Worse, poor-quality stones with pits and blemishes can completely discredit the reputation you worked so hard to build.
So if you want reliable access to top-quality alexandrite and to lead the market with luxury, sustainable jewellery, you’re going to want to learn about how BIRON®’s lab-grown stones can transform your business.
The BIRON® Difference

Photo Credit: Inter-pacific
Upon first glance of a BIRON® lab-grown alexandrite stone, all you will notice is its vitreous lustre.
But behind that stone is a laboratory that uses the natural mineral chrysoberyl to replicate the exact same chemical composition of a natural alexandrite stone.
Your current customers will love gaining access to such high-quality, sustainable alexandrite.
And you can now attract new customers who increasingly value ethically sourced and sustainable gems.
Available in teal, greenish-blue, or bulish-green under natural daylight that changes to purplish-red or red under incandescent light, our alexandrite boasts little to no inclusion while maintaining its colour-changing ability.
Backed by 35-years of experience in gemstones sourcing, we are trusted by clients all over the world for both our gemstone and business integrity — inspecting each and every stone before delivery so that you can stay true to your art and fulfil your orders.
Make Your Jewels Stand Out

Photo Credit: Inter-pacific
Take a look here at this custom-designed alexandrite ring by the talented Italian jewellery designer Franco Anzelmo.
Specially made for a client who wanted to combine ethically sourced and sustainable alexandrite with Franco Anzelmo’s superb design and Italian craftsmanship, the ring brings together the modernity of lab-grown gems with the heritage of the designer’s artisanship.
Using three BIRON® alexandrite stones — two 7mm the other 9x7mm — the ring also incorporates the initials “A”, “S” and “K” for the owner. Look closely and the “K” can also be interpreted as the simplified Chinese character 张, the owner’s surname.
A truly unique and special piece, this ring was brought to life by craftsmen who could make this on-demand thanks to our high-quality, reliable sourcing of alexandrite.
Need some more inspiration?
Alexandrite is one of the June birthstones, the 55th wedding anniversary stone and quickly becoming an engagement ring trend.
Alexandrite coordinates well with padparadscha and brilliant white diamonds.
Just take a look at these 18K gold fine jewellery pieces that are set with BIRON® lab-grown cut stones.
With the help of BIRON®, you can now secure premium lab-grown gems that your new, discerning and eco-conscious customer craves for every occasion.
Get in touch with our specialists today to learn more about how BIRON® can transform your business.
The More Popular Lab-Grown Alexandrite Cuts
Testimonials
I was in awe!
The cut, colour, clarity and brilliance … are no different than the pricier ones at the fine jewellery boutiques at ifc mall.
BIRON® Synthetic Alexandrite: The Captivating Colour-Changing Wonder
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Physically, chemically, and optically identical to its mined counterpart.
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classification is chrysoberyl and the crystal system is orthorhombic.
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luster is vitreous.
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stunning colour changing effect
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Surpasses natural stones in consistency and reliability.
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Exceptional hardness of 8.5 on the Mohs scale.
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Perfectly suited for enduring fine jewellery, such as lab-created alexandrite rings and other bespoke creations.
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Embrace impeccable quality and a transparent supply chain that aligns with modern, eco-conscious values.

Chameleons can famously change their colours. Photo Credit: NIABIZOO
Product Overview

First synthetic colour-change corundum was grown in 1909 and used as an alexandrite imitation. Photo Credit: ALEXANDRITE.NET
Discover a gemstone that transcends the ordinary—BIRON® Synthetic Alexandrite. This extraordinary gem captures the essence of nature’s rarity, offering a mesmerizing colour-change phenomenon that shifts from a lush bluish-green in daylight to a rich purplish-red under incandescent light. As a leading manufacturer of high-tech lab-grown gemstones, BIRON® provides an impeccable, sustainable alternative to the unpredictable natural stone market.Our synthetic alexandrite is physically, chemically, and optically identical to its mined counterpart, yet it surpasses natural stones in consistency and reliability. With an exceptional hardness of 8.5 on the Mohs scale, it’s perfectly suited for enduring fine jewellery, such as lab-created alexandrite rings and other bespoke creations. By choosing BIRON®, you embrace impeccable quality and a transparent supply chain that aligns with modern, eco-conscious values.
Features & Specifications
At BIRON®, our advanced manufacturing technology sets us apart. We employ sophisticated methods, including the floating zone process, to cultivate synthetic alexandrite with meticulous precision. This ensures every stone exhibits a vibrant colour change, superior clarity, and a consistent chemical structure. The result? A gemstone that often exceeds the quality of mined stones, which can suffer from imperfections and supply inconsistencies.
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Material Purity: Each gem is composed of Beryllium Aluminium Oxide (BeAl2O4) with chromium traces, mirroring the finest natural specimens.
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Hardness & Durability: Rated 8.5 on the Mohs scale, ensuring longevity and resilience for daily wear.
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Ethical Guarantee: 100% conflict-free with a transparent and sustainable supply chain.

Alexandrite grown in laboratory reducing carbon footprint. Photo Credit: BESTHQWALLPAERS
Why Choose This Product

Photo Credit: Shutterstock
BIRON® synthetic alexandrite offers unparalleled creative freedom. Designers are no longer limited by the rarity and high cost of natural alexandrite. Our ability to produce gemstones in various shapes and sizes enables the creation of bold, innovative designs—from stunning synthetic alexandrite rings to perfectly matched sets of earrings and pendants.Incorporating BIRON® gemstones into your collections also enhances your brand narrative. It communicates a commitment to sustainability, ethical sourcing, and modern luxury—a message that resonates with today’s discerning consumers. The accessible price point of lab-grown alexandrite allows for more competitive retail positioning without sacrificing the gem’s prestige.
FAQs
What is a synthetic alexandrite?
A synthetic alexandrite is a genuine gemstone grown in a controlled laboratory environment, possessing the same properties as a mined alexandrite, including its colour-changing ability.
How does the colour change in lab-grown alexandrite work?
The colour change is due to chromium ions in the alexandrite’s crystal structure, which interact differently with light depending on the source. Daylight or fluorescent light results in a greenish-blue appearance, while incandescent light reveals a purplish-red hue.
What are the benefits of using created alexandrite for jewellery?
Benefits include consistent quality, exceptional clarity, ethical sourcing, and a more affordable price point compared to rare natural stones. This makes it ideal for designers seeking reliable, sustainable, and high-quality materials.
Is a synthetic alexandrite ring a good choice for fine jewellery?
Absolutely. With its durability and stunning beauty, synthetic alexandrite is an excellent choice for engagement rings and other fine jewellery. Its ethical origins and accessibility add further value and appeal.
Contact Us
How can we help you?
Whether you wish to create your first ethical and sustainable jewellery brand or enrich your current collections, we are here to help.








