1st - Gold 
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December 
Capricorn - Garnet 
Aquarius - Amethyst 
Pisces - Aquamarine 
Aries - Diamond 
Taurus - Emerald 
Gemini - Pearl 
Cancer - Ruby 
Leo - Peridot 
Virgo - Blue Sapphire 
Libra - Opal 
Scorpio - Topaz 
Sagittarius - Tanzanite 
Demantoid Garnet
Pricing Guide
Demantoid Garnet Prices Per Carat in ZAR, USD, EUR and GBP.
Demantoid garnet pricing guide per carat is among the highest in the garnet family due to its extreme rarity, vivid green colour, and strong collector demand. Demantoid garnet is one of the most valuable and rare varieties of the garnet group, known for its brilliant green hues caused by trace chromium and iron. Colours range from yellow-green to intense emerald-like green with exceptional fire and dispersion.
While garnets are generally considered affordable gemstones, demantoid garnet is an exception, often rivaling emerald and even sapphire in top-quality specimens. Fine demantoid garnets with strong colour saturation, visible “horsetail” inclusions, and excellent clarity can command extremely high international prices.
Demantoid Garnet Pricing Guide: Per Carat in ZAR, USD, EUR & GBP.
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Why Demantoid Garnet Prices Vary
Although demantoid garnet is part of the wider garnet family, it behaves like a luxury collector gemstone rather than a commercial semi-precious stone.
Key price drivers include:
- Colour intensity and saturation (green tone strength)
- Presence of horsetail inclusions
- Clarity and transparency
- Carat size (large stones are extremely rare)
- Origin (Russian material is most valuable)
- Cut quality and brilliance performance
The combination of vivid green colour and natural inclusions is what defines top-tier demantoid value.
Demantoid Garnet Price by Gemstone Quality – Per Carat
All prices below are approximate international retail ranges in ZAR, USD, EUR and GBP.
Demantoid garnet is one of the rarest and most valuable members of the garnet family. It is prized for its exceptional dispersion (fire), bright green colour, and scarcity in larger sizes. Unlike most garnets, fine demantoid is considered a high-end collector gemstone.
Whether used in fine jewellery or collected as an investment gemstone, demantoid garnet pricing reflects rarity, not abundance.
| Demantoid Garnet Quality | ZAR | USD | EUR | GBP |
|---|---|---|---|---|
| Commercial Demantoid | R1,500 – R6,000 | |||
| Good Quality Demantoid | R6,000 – R250,000 | |||
| Fine Quality Demantoid | R25,000 – R150,000 | |||
| Top Collector Demantoid | R150,000 – R900,000+ |
How Colour Affects Demantoid Garnet Price
Colour is the most important value factor in demantoid garnet.
Colour Grades
- Yellow-green: entry level
- Medium green: standard gem quality
- Vivid green: high-value category
- Deep emerald-like green: premium collector grade
The most valuable demantoid garnets show a pure, saturated green with excellent brightness and fire.
How Clarity Affects Price
Unlike many gemstones, inclusions in demantoid garnet can increase value.
- Eye-clean stones = rare but not always most valuable
- Horsetail inclusions = highly desirable in Russian material
- Cloudy stones = lower value
- Heavy fractures = significant price reduction
Horsetail inclusions are often seen as proof of origin and authenticity.
Demantoid Garnet Origins and Price Differences
Origin is one of the strongest price drivers in demantoid garnet.
Key Origins:
- Russia (Ural Mountains – premium historical source)
- Namibia (high-quality modern production)
- Madagascar (commercial to fine material)
- Italy (historical minor deposits)
Russian demantoid remains the most valuable due to its intense green colour and classic horsetail inclusions.
Demantoid Garnet Size Pricing Effect – per gemstone size
| Coral Gemstone Size | ZAR | USD | EUR | GBP |
|---|---|---|---|---|
| 0.3 - 0.5 Carat | R2,000 – R12,000 | |||
| 0.5 - 1 Carats | R8,000 – R60,000 | |||
| 1 - 2 Carats | R25,000 – R250,000 | |||
| 2+ Carats | R120,000 – R1,200,000+ |
Why Demantoid Garnet Is Still Valuable
Demantoid garnet is one of the most valuable garnet varieties due to its rarity and optical performance. Large fine demantoid garnets are extremely rare and often found only in private collections or auctions.
Key Value Factors
- Extreme Rarity
Fine demantoid is far rarer than most coloured gemstones. - Exceptional Fire (Dispersion)
Demantoid has higher brilliance than diamond in some cases. - Collector Demand
Strong demand from high-end gemstone collectors worldwide. - Historical Prestige
Russian demantoid has been prized since the 19th century. - Unique “Horsetail” Inclusions
Fine Russian stones often contain distinctive golden fibrous inclusions prized by collectors. - Intense Vivid Green Colour
Bright emerald-like green hues with strong saturation command premium prices.
Why Vivid Green Demantoid Costs More
High-value demantoid garnets are rare because:
- Strong green saturation is uncommon in large crystals
- Horsetail inclusions increase collector value
- Fine material is geographically limited
- Larger stones are extremely rare
Stones combining vivid green colour and visible horsetail inclusions are the most expensive category.
Is Demantoid Garnet a Good Investment?
Demantoid garnet can be an excellent collector gemstone but is highly selective in investment quality.
Best suited for:
- High-end gemstone collectors
- Rare gemstone portfolios
- Jewellery with strong resale appeal
- Boutique luxury pieces
Only fine Russian or Namibian material tends to show strong long-term value retention.
Buying Tips for Demantoid Garnet Gemstones
Focus on Colour First
Strong green saturation drives pricing more than anything else.
Do Not Avoid Horsetail Inclusions
They often increase value, not reduce it.
Check Carat Weight Carefully
Even small increases in size dramatically affect price.
Prioritise Origin Disclosure
Russian and Namibian stones command premiums.
Avoid Washed-Out Stones
Yellow-green material has significantly lower value.
Inspect Cut Quality
Good cutting maximises fire and brilliance.
Ensure Authentic Certification
Especially for high-value stones.
Check for Treatment Disclosure
Untreated demantoid garnets are considerably more valuable than fracture-filled or clarity-enhanced stones.
Buy With Confidence
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Full transparency on treatments
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Final Thoughts on DEMANTOID GARNET PRICES
Demantoid garnet is one of the most extraordinary gemstones in the garnet family, combining rarity, brilliance and strong collector demand. While small commercial stones remain accessible, fine vivid green demantoid garnets are among the most expensive coloured gemstones per carat.
Understanding demantoid garnet price per carat, origin differences, and inclusion value is essential for identifying true investment-grade material.
For buyers seeking rarity, brilliance and strong visual impact, demantoid garnet remains one of the most impressive collector gemstones available in the global market.
Vivid Green
Diamond-Like Fire
Rare & Collectible
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