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Calibrated · Loose Sapphire
Lab Created Star Green Round Cabochon – Transparent Synthetic Sapphire Gemstone for Jewelry Making – Loose Round Cab – 10mm-12mm
Sold per stone. Pick a size and options; the price drops as you add more of the same stone.
- Free US shipping
over $35 - 30-day returns
- Ships to
50+ countries
- Shape
- Round
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Settings that fit
Every setting here is made for this exact size. Change the size above and the list changes with it.
Your stone, actual size
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Every size at actual size
At 100% zoom on a computer screen. Click a size to choose it.
About these stones
### **Product Description**
Discover the beauty of this **Lab Created Star Green Sapphire round Cabochon**, a transparent synthetic gemstone perfect for custom jewelry designs. With its soft, serene grhue and smooth domed surface, this sapphire cabochon is ideal for both classic and contemporary pieces. Precision-cut and highly polished, this gemstone offers the look of natural sapphire at a fraction of the cost.
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### **Highlights**
- **Stone:** Lab Created Star Green Sapphire
- **Shape:** Round Cabochon
- **Color:** Green
- **Clarity:** Transparent
- **Hardness:** 9 on Mohs Scale
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### **Benefits**
- Beautiful green color enhances any jewelry design
- Lab grown for ethical, affordable luxury
- Durable and long-lasting with high scratch resistance
- Smooth dome surface for bezel, wire wrap, or custom settings
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### **Usage**
Perfect for creating custom:
- Engagement rings
- Pendant necklaces
- Statement earrings
- Artisan or fine jewelry projects
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### **Quality Assurance**
Each gemstone is quality checked for color consistency, transparency, and smooth finish. We only ship stones that meet our high standards of brilliance and craftsmanship.
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### **Shop Policies**
- **Processing Time:** 1–2 business days
- **Shipping:** Worldwide shipping with tracking
- **Returns:** 30-day return policy on all non-custom items
- **Support:** Message us anytime for assistance or custom requests
How we grade
A: lighter colour, visible inclusions. Good for fashion pieces and practice settings.
AA: even colour, some inclusions you can see up close. Everyday jewelry.
AAA: rich colour, eye clean. Fine jewelry.
AAAA: the top colour we cut, eye clean. Statement and heirloom pieces.
Market Basics or Precision
Market Basics: good outlines; sizes and depths vary a little stone to stone. Best value for settings you adjust by hand.
Precision: even outlines and matched depths. Drops into pre-notched castings and lines up in rows and halos.