lab created alexandrite in a hex cut

Alexandrite's Amazing Colors

Retour au blog

Today at Stag & Finch we want to talk about Lab-created alexandrite which is celebrated for its mesmerizing ability to change color depending on the light source. This phenomenon, which has intrigued gem enthusiasts for years, results in a stunning visual display that ranges from greens and blues to purples and reds.

In this blog post, we’ll explore a little bit of the science and artistry behind how lab-created alexandrite changes color, and what makes this gemstone so enchanting.

Understanding Alexandrite's Color-Changing Magic

Alexandrite’s color change is one of nature’s most intriguing optical phenomena. This gem, which belongs to the chrysoberyl family, is known for its ability to shift from green in white light to red or purplish-red under warm light. This shift occurs because of the presence of trace elements, which interact with light within the crystal lattice of the gemstone affecting how the different spectrums of light are absorbed and reflected.

  1. Daylight Effect: In natural daylight or daylight equivalent artificial white lighting, which is the full spectrum of daylight, alexandrite typically appears in shades of greens and blues.
  2. Mixed-Transitory Effect: When Alexandrite is in mixed lighting with various light sources with variable light spectrums it can create a unique beautiful effect where portions of each light spectrum can be absorbed and reflected independently creating a mix or array of colors within a single gem.
  3. Incandescent Effect: Under warm lighting which have traditionally been incandescent light or candlelight, alexandrite transforms into shades of reds or purplish-red. The light’s lower color temperature means it has a different light spectrum compared to daylight, altering which spectrums of light the gemstone is able to absorb and reflect back.

*This is the exact same 8mm Lab Alexandrite 'Cosmos' Hex cut gem, photographed in different lighting.

  • Daylight Effect

  • Mixed-Transitory Effect

  • Incandescent Effect
lab alexandrite cube

What is Trichroism?

Alexandrite is one of the best gemstone examples of Trichroism. Trichroism refers to the ability of a gemstone to exhibit three different colors when viewed from different crystallographic axes. This phenomenon is a result of the gemstone's internal structure and the way it interacts with light. Trichroic gemstones display a more complex array of hues, providing a dynamic and ever-changing visual experience.

How Trichroism Works

The key to trichroism lies in the gemstone's crystal lattice. In trichroic gems, the internal structure is anisotropic, meaning it has different optical properties along different crystallographic axes. When light enters the gemstone, it is absorbed and transmitted differently depending on the orientation of these axes. As a result, the observer sees different colors depending on the angle of view.

Characteristics of Lab-Created Alexandrite

  1. Consistency and Quality: One of the notable advantages of lab-created alexandrite is its consistent quality. The controlled conditions under which these stones are grown lead to fewer inclusions and more predictable color changes. As a result, lab-created alexandrite can offer a stunning and uniform display of its color-shifting ability.
  2. Environmental and Ethical Benefits: Lab-created alexandrite presents a more sustainable and ethical option compared to mined stones. The production of synthetic gems requires fewer resources and generates less environmental impact. Additionally, lab-created stones avoid the ethical concerns often associated with gemstone mining, such as labor exploitation and conflict.
  3. Affordability: One of the most appealing aspects of lab-created alexandrite is its affordability. Natural alexandrite is a rare and expensive gemstone, often priced beyond the reach of many collectors and jewelry enthusiasts. Lab-created alexandrite offers a similar visual appeal at a fraction of the cost, making it an attractive option for those seeking beauty within a budget.

Caring for Your Lab-Created Alexandrite

Lab-created Alexandrite is durable and relatively easy to care for. With a Mohs hardness 8.5 Alexandrite is durable enough to withstand the punishment of a daily wear ring. To keep your gem looking its best, clean it with a mild soap and water solution using a soft brush. Avoid exposing it to harsh chemicals or abrasive materials that could potentially damage its surface. Basic regular maintenance will ensure that your lab-created alexandrite continues to dazzle with its remarkable color-changing effect.

Embrace the Enchantment

Lab-created alexandrite offers a modern twist on a timeless gemstone, combining the wonder of natural color change with the advantages of technological innovation. Whether you're drawn to its environmental benefits, its affordability, or simply its stunning visual appeal, lab-created alexandrite is a captivating choice for anyone fascinated by the magic of gemstones.