Buying a loose gemstone gives you independence, you get the freedom to make your own choice, your own jewelry design.
A natural 0.52 carat ruby gemstone in a 5mm round mixed brilliant cut — a precision-faceted shape that maximizes the stone's natural radiance and fire. Graded eye-clean, this gemstone displays exceptional quality with no visible inclusions under standard viewing conditions. The expertly faceted surface captures and disperses light with remarkable precision, producing a vivid interplay of brilliance and scintillation. A refined choice for those seeking a high-quality natural ruby that combines aesthetic beauty with gemological integrity.
Expert Opinion
Ahmed Shareek's Assessment
"This 0.52 ct round ruby shows a vivid, saturated red typical of fine Sri Lankan material, with strong pleochroism between red and orangy-red that gives the stone visible depth as it moves under light."
Rarity Analysis
Ruby is corundum colored by chromium, and fine, vividly saturated red material is a small share of overall corundum production compared with blue and other sapphire colors.
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Color: This stone's Vivid Red, Intense-saturation color sits at the top of the ruby color range most buyers seek, rather than the lighter pinkish-red tones more common in commercial material.
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Size: At 0.52 ct, this stone falls at the compact end of the ruby market; sub-carat rubies of clean, vivid color are more available than larger stones of comparable quality, though vivid true-red ruby of any size is not easy to source.
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Treatment: Heat treatment is the standard, expected enhancement for the great majority of ruby on the market — this stone's treatment status is typical, not exceptional.
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Clarity: Graded Slightly Included, consistent with natural ruby, which characteristically carries more inclusions than sapphire of comparable size due to its formation conditions.
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Documentation: Graded by FGL; no report number is recorded in this stone's product data.
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Combined effect: It is the combination of vivid, saturated red color with a clean round cut at this size — not color alone — that sets this stone apart; vivid-red ruby is consistently harder to source than lighter, commercial pinkish-red material.
Buying Guidance
A few practical points to weigh before purchasing this specific stone:
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View the stone in daylight and under warm indoor lighting — ruby's red can shift noticeably in tone between the two, and a vivid stone like this one should hold its saturation in both.
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At 4.60mm round, this stone fits a standard round solitaire or halo head sized for a 0.50 ct diamond equivalent, without custom fabrication.
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When comparison-shopping, confirm treatment status and lab source in writing — heat treatment is standard for ruby, but undisclosed treatments such as glass-filling or diffusion are common at the lower end of the market and should be ruled out.
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Weigh the scarcity noted above, since vivid-red ruby at any carat weight is harder to source consistently than lighter pinkish-red material, regardless of this stone's compact size.
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Use the Try Before You Buy option if you would like to see the stone in hand before finalizing the purchase.
Learn More About This Gemstone
Gemstone Data — At a Glance
| Item # |
CG8140 |
| Carat Weight |
0.52 ct |
| Species / Variety |
Ruby (Corundum) |
| Shape / Cut |
Round, Modified Round Brilliant |
| Dimensions |
4.60 x 4.60 x 3.11 mm |
| Color / Intensity |
Vivid Red (Intense saturation) |
| Phenomenon |
None |
| Treatment |
Heat Treated |
| Origin |
Sri Lanka (Ceylon) |
| Clarity |
Slightly Included |
| Transparency |
Transparent |
| Hardness |
9 (Mohs) |
| Certification |
FGL — report number not listed in product data |
Why Choose this 0.52 ct Round Natural Ruby?
This 0.52 ct natural ruby is more than just a gemstone — it's a statement of elegance, rarity, and authenticity. Whether you're designing a custom engagement ring or a meaningful pendant, this gemstone offers unmatched brilliance and natural charm.
Key Benefits of this Natural ruby gemstone
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Timeless Investment
Natural ruby gemstones retain value and are highly sought after worldwide.
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Versatile Jewelry Use
Ideal for rings, necklaces, earrings, or bespoke creations.
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Rich Vivid Red Hue
Deep, saturated color perfect for meaningful jewelry pieces.
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Symbolic Meaning
The ruby, known as the "king of gems," symbolizes intense passion, love, protection, and wealth.
Features
- Carat Weight: 0.52 Carats
- Gem Type: Natural Ruby
- Cut: Round, Mixed Brilliant Cut
- Dimensions: 5.00 mm round
- Origin: Sri Lanka
- Treatment: Heat treated
- Color: Vivid Red
- Clarity: Eye-clean — no visible inclusions
- Hardness: 9 on the Mohs scale
This 0.52 ct natural ruby has been carefully selected to meet high gemological standards, ensuring quality, durability, and beauty.
Why Customers Love This Gemstone
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Rare Natural Quality: Well-cut natural rubies are increasingly difficult to source at this quality level.
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Brilliant Sparkle: Precision cutting enhances light reflection and fire.
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Perfect for Custom Jewelry: A centerpiece that elevates any design.
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Trusted Selection: Each stone is chosen for authenticity and excellence.
Owning this 0.52 ct natural ruby means investing in a gemstone that blends natural beauty with long-term value.
Perfect uses for this 0.52 ct Natural Ruby
- Engagement rings
- Anniversary gifts
- Custom fine jewelry
- Collectors of natural gemstones
- Astrological or spiritual jewelry
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