Lab Created Ruby / Synthetic Ruby / Synthetic Corundum
Premium Lab Created Ruby
Lab Created Ruby, also known as Synthetic Ruby or Synthetic Corundum, is a premium laboratory-grown gemstone made from Aluminum Oxide (Al₂O₃) with chromium as the coloring element. It displays a vibrant pink to deep blood-red color, excellent brilliance, and outstanding durability. Therefore, it offers the beauty of natural ruby at a more affordable price.
For centuries, ruby has symbolized passion, courage, and strength. According to ancient traditions, rubies were often valued more highly than diamonds. Today, jewelry manufacturers, designers, and collectors choose Lab Created Ruby for its beauty and reliable quality. Additionally, both natural and laboratory-created rubies are widely used in watchmaking, medical instruments, and laser technology.
Manufacturing Process
Manufacturers produce Lab Created Ruby using two advanced crystal growth methods.
First, the Flame Fusion Process combines high-purity aluminum oxide with chromium at extremely high temperatures to create ruby crystals. This method produces gemstones with vibrant color and excellent clarity. However, rapid crystal growth may create tiny gas bubbles.
Next, the Flux Growth Process grows ruby crystals slowly inside a molten chemical solution called flux. As a result, the crystals develop growth patterns that closely resemble those of natural ruby. Consequently, Flux-grown rubies are highly valued for their natural appearance.
Physical Properties
| Property | Specification |
|---|---|
| Color | Pink to Blood Red |
| Chemical Formula | Al₂O₃ (Corundum) |
| Hardness | 9 (Mohs Scale) |
| Specific Gravity | 3.97–4.05 |
| Refractive Index | 1.768–1.772 |
| Birthstone | July |
Because of these properties, Lab Created Ruby provides excellent durability, brilliance, and scratch resistance.
Available Shapes
We supply Lab Created Ruby in many precision-cut shapes, including:
- Round
- Oval
- Cushion
- Emerald
- Pear
- Marquise
- Heart
- Square
- Baguette
- Triangle
- Trillion
Furthermore, we offer custom cuts, calibrated sizes, and matching pairs to meet individual customer requirements.
Applications
Lab Created Ruby is suitable for many applications, including:
- Rings
- Earrings
- Necklaces
- Bracelets
- Pendants
- Fine Jewelry
- Fashion Jewelry
- Watchmaking
- Medical Instruments
- Laser Systems
In addition, its excellent hardness and brilliant appearance make it ideal for both everyday jewelry and professional applications.
Why Choose GEMS N GEMS?
At GEMS N GEMS, we supply premium-quality Lab Created Loose Rubies with exceptional color, clarity, and precision cutting. Moreover, we provide custom sizes, wholesale quantities, and competitive pricing for jewelry manufacturers and gemstone dealers worldwide. Finally, every gemstone undergoes careful inspection to ensure consistent quality and customer satisfaction.


Jacob House (verified owner) –
Good crunch with interesting aftertaste though lacking in upfront taste