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Model proportions
A circular outline with facets arranged around the centre.
- Reference size (L × W × D)
- 10.00 × 10.00 × 6.22 mm
- Length-to-width ratio
- 1.00:1
- Depth (% of width)
- 62.2%
- Table (% of width)
- 49.0%
This model illustrates the cut. Its colour, proportions and facets may differ from the stone shown in the product photos.
ZGems
Round Cut Lab-Grown Ruby
Round Cut Lab-Grown Ruby
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A LITTLE HELP FINDING THE ONE?
Create a piece around thisTalk to us about your preferred stone, setting and design.
This round cut lab-grown ruby is a loose gemstone in vivid red, with eye-clean clarity and 1–5 ct options.
Gemstone details
- Gemstone
- Ruby
- Creation
- Lab-grown
- Shape
- Round cut
- Colour
- Vivid Red
- Clarity
- Eye Clean
- Available carat weights
- 1 ct, 2 ct, 3 ct, 4 ct, 5 ct
- Listed cut quality
- Excellent
Size & dimensions
| Approx. dimensions (L × W) | Carat weight |
|---|---|
| 6.2 × 6.2 mm | 1 ct |
| 7.8 × 7.8 mm | 2 ct |
| 9.0 × 9.0 mm | 3 ct |
| 9.9 × 9.9 mm | 4 ct |
| 10.7 × 10.7 mm | 5 ct |
Approximate face-up dimensions only. Actual measurements may vary depending on the individual gemstone, cut proportions and depth. Please confirm exact measurements before ordering a fitted setting.
Colour and design
Its circular outline gives the stone a distinctive starting point for a personal jewellery design.
The vivid red colour brings a strong accent to a solitaire, a pendant or a custom piece chosen for a meaningful occasion. A round outline suits a classic solitaire, a pendant or a pair of coordinated earrings. Compare the measurements as well as the carat weight when choosing a setting.
Is a jewellery setting included?
This listing is for a loose gemstone. Contact ZGems through our custom jewellery service to discuss a ring, pendant or other setting and request a separate quote.
How do I choose the right size?
Select a carat option to see its price. Ask us for exact measurements, treatment information and any available report details for the selected stone before commissioning a setting.
Explore more ruby or compare shapes in our gemstone cut guide.
Care
Ask ZGems for cleaning advice for your stone and its setting.
Details
Available Diamond Shapes
1. Round
2. Oval
3. Princess
4. Cushion
5. Emerald
6. Radiant
7. Pear
8. Marquise
9. Heart
10. Radiant
11. Other Shapes Available upon Request
Specs
Carat Weight: 1.0 ct to 5.0ct+
Colour Grades: Eye Clean
Cut Grades: Good to Excellent
Certification: Certified Gemologist
Highlights
✓ 100% Real Lab Grown Gemstones
✓ Ethical & Sustainable Choice
✓ Excellent Fire & Brilliance
✓ Available from 1.0ct to 5.0ct+
✓ Custom Ring Design Service
✓ Worldwide Shipping
FAQ Section
What is a lab grown gemstone?
A lab grown gemstone is a genuine gemstone created in a controlled laboratory environment using advanced technology that replicates the natural crystal growth process.
Are lab grown gemstones real gemstones?
Yes. Lab grown gemstones have the same chemical, physical, and optical properties as their natural counterparts, making them real gemstones rather than imitations.
Can gem labs certify lab grown gemstones?Yes. Many lab grown gemstones can be identified, graded, and certified by recognised gemological laboratories, providing confidence in their authenticity and quality.
Do lab grown gemstones have the same beauty as natural gemstones?
Absolutely. Lab grown gemstones display the same colour, brilliance, clarity, and durability as natural gemstones, often with exceptional visual quality.
What types of lab grown gemstones are available?
Popular options include lab grown sapphire, ruby, emerald, alexandrite, moissanite, spinel, and many other gemstones in a wide range of colours and sizes.
Can you source a specific gemstone for me?
Yes. We can source gemstones based on your preferred gemstone type, colour, size, shape, origin preference, certification requirements, and budget.
Lab Grown Gemstones
Real gemstones. Extraordinary colour. Timeless beauty. Lab grown gemstones possess the same chemical, physical, and optical properties as natural gemstones, delivering exceptional brilliance, stunning colour, and remarkable value through a more sustainable and responsible choice.
Why Choose Lab Grown Gemstones?
-
100% Real Gemtones
Lab grown gemstones have the same crystal structure, hardness, brilliance, and fire as mined gemstones.
-
Ethically Created
Produced in controlled laboratory environments with transparent sourcing and traceability.
-
Outstanding Value
Enjoy larger sizes and higher grades for your budget, often saving 80% to 90% compared to equivalent natural gemstones.
-
Certified Quality
Available with internationally recognised grading reports from IGI and other respected gem laboratories.