Frequently Asked Questions
Are lab-grown sapphires, rubies, and emeralds considered 'real' gemstones? +
Yes. Lab-grown corundum (sapphires and rubies) and beryl (emeralds) are chemically, physically, and optically identical to their mined counterparts. They possess the same hardness—9 on the Mohs scale for rubies/sapphires and 7.5 to 8 for emeralds—and the same crystalline structure.
What are the most popular shapes for lab-grown emeralds? +
The 'emerald cut' remains the most iconic choice because it highlights the stone's deep color and clarity. However, because lab-grown emeralds lack the heavy 'jardin' (inclusions) found in natural stones, they are also popular in pear, oval, and round brilliant cuts which offer more sparkle.
Do lab-grown rubies show the same 'pigeon blood' red as natural stones? +
Absolutely. One of the primary advantages of lab-grown rubies is the ability to achieve the highly coveted 'pigeon blood' hue—a vibrant, saturated red with a hint of blue—without the multi-million dollar price tag of a rare Burmese ruby.
Why are lab-grown sapphires available in so many different sizes compared to natural ones? +
In nature, large, eye-clean sapphires are exceptionally rare. In a controlled laboratory setting, scientists can grow high-quality crystal rough that allows for consistent production of large stones, such as 5-carat or 10-carat cushions and radiants, which are much more accessible for statement jewelry.
What should I look for in the cut of a lab-grown round sapphire or ruby? +
Look for symmetry and 'light return.' Because these stones are lab-created, there is no reason to settle for a shallow or 'windowed' cut (where light leaks through the bottom). A well-cut round stone should have a vibrant center and even color distribution across all facets.
Are lab-grown emeralds more durable than natural emeralds? +
While they have the same chemical hardness, lab-grown emeralds are often more structurally sound. Natural emeralds are notorious for significant fractures and inclusions that make them brittle; lab-grown versions typically have fewer internal stresses, though they still require care due to the inherent nature of beryl.
Can I find fancy shapes like trillions or hearts in lab-grown colored gemstones? +
Yes. Lab-grown material provides a stable, high-quality canvas for master cutters to experiment with fancy shapes like trillions, hearts, and marquise cuts that might be too risky or wasteful to attempt with expensive, irregularly shaped natural rough.
How does the price of a 2-carat lab-grown sapphire compare to a natural one? +
A 2-carat lab-grown sapphire is significantly more affordable, often costing 10% to 20% of the price of a natural sapphire of similar quality. This allows buyers to prioritize larger sizes and more intricate cuts while staying within a specific budget.