33.72 CARATS!! PIGEON-BLOOD RUBY - TOP QUALITY GÉANT - MAURITANIA - Height: 20 mm - Width: 13 mm- 6.74 g - (1)





€9 | ||
|---|---|---|
€8 | ||
€6 | ||
Catawiki Buyer Protection
Your payment’s safe with us until you receive your object.View details
Trustpilot 4.4 | 143216 reviews
Rated Excellent on Trustpilot.
Natural rough ruby of 33.72 carats from Mauritania, with dimensions 20 × 13 × 12.5 mm, showing an intense red colour and translucent light transmission.
Description from the seller
Discover an exceptional natural rough ruby weighing 33.72 carats, originating from Mauritania, a gemstone particularly appealing for the intensity of its red color, its remarkable size, and its ability to transmit light.
This magnificent specimen reveals, under proper lighting, a vivid raspberry red color, interspersed with deep ruby-red and bright carmine pink nuances. Light penetrates certain zones of the crystal and reveals a striking chromatic richness, giving the stone an almost incandescent appearance.
Its natural morphology, generous dimensions, and visible crystal structures are assets for discerning collectors and gemology enthusiasts. With a weight over 33 carats, this ruby also represents an interesting rough material for specialized lapidaries, who will be able to study its crystallographic orientation and the possibilities for valorizing its translucent zones.
A piece of character, combining spectacular coloration, remarkable mineral presence, and all the fascination of natural rubies.
Technical characteristics
- Stone: Natural ruby
- Mineral variety: Red corundum
- Weight: 33.72 carats
- Dimensions: 20 × 13 × 12.5 mm
- Claimed origin: Mauritania, Africa
- Color: Intense red to raspberry red, with carmine pink nuances
- Transparency: Translucent, with good light transmission under illumination
- Shape: Natural rough crystal, uncut
- Chemical composition: Aluminum oxide (Al2O3)
- Hardness: 9 on the Mohs scale
- Crystal system: Trigonal
- Condition: Rough, showing its natural growth structures
- Treatments: Not determined by laboratory analysis
- Destination: Collection of gemstones, gemological study, lapidary creation
Gemological analysis – An exceptional chromatic intensity
A red color of remarkable depth
The most striking feature of this ruby is undoubtedly its magnificent red coloration, especially expressive when it is traversed by a light source.
Under transmitted illumination, the crystal reveals intense luminosity, highlighting several complementary tones:
- Deep ruby red: visible in the densest areas of the crystal, adding richness and depth to its color
- Bright raspberry red: particularly present in the lighter parts
- Intense carmine pink: perceptible in zones traversed by light
- Natural saturation variations: creating an aesthetic contrast between different parts of the specimen
This coloration is linked to the presence of chromium in the crystal structure of corundum, the element responsible for the characteristic red hues of ruby.
Photography under transmitted illumination illustrates well how light interacts with the crystal, revealing impressive chromatic intensity.
A remarkable weight of 33.72 carats
At 33.72 carats (6.744 grams), this ruby presents an interesting mass for a natural rough specimen.
Its dimensions of 20 × 13 × 12.5 mm give it a substantial volume, allowing observation of its crystallization characteristics and the various transparency zones.
The combination of weight, color, and morphology makes it truly interesting for collection and gemological study.
For a lapidary, this volume also provides a solid basis to examine potential cutting possibilities.
A seductive translucency and a fascinating natural structure
This specimen shows particularly aesthetic translucency under illumination, allowing light to pass through a significant portion of its structure.
Photography also reveals internal lines, growth variations, and natural features that attest to its geological history.
These characteristics are of interest for gemological observation.
The stone retains an authentic rough morphology, with natural surfaces and reliefs that give it its own identity.
The combination of these crystal structures and its luminous color makes it a visually captivating specimen.
History and rarity – The ruby, a legendary gemstone
A coveted stone for millennia
Ruby ranks among the most famous and sought-after gemstones in history.
Its name comes from the Latin ruber, meaning “red,” a direct reference to the intense color that has fascinated civilizations for centuries.
In antiquity, rubies were regarded as symbols of power, courage, and prosperity.
They occupied a privileged place in royal treasuries and gemstone collections.
Today, ruby remains part of the traditional quartet of the four major gemstones, alongside diamond, sapphire, and emerald.
A fascinating geological formation
Natural rubies form in particular geological environments, requiring favorable conditions of temperature, pressure, and chemical composition.
Their formation notably rests on the crystallization of corundum in the presence of chromium.
The meeting of these conditions explains why gem-quality ruby deposits remain relatively localized worldwide.
Crystals with attractive coloration, good light transmission, and exploitable volume are particularly sought after.
Mauritania – A singular African provenance
Africa today plays an important role in the world of gemstones, thanks in particular to its many corundum deposits.
Mauritania possesses diverse geological heritage, characterized by ancient formations and varied mineralogical environments.
Unlike historically recognized sources such as Myanmar, Mozambique, or Madagascar, Mauritania remains underrepresented on the international ruby market.
This declared provenance adds particular interest for collectors who appreciate less common origins.
Scientific confirmation of geographic origin would nonetheless require specialized gemological expertise and traceability elements.
A collectible piece and a remarkable lapidary study subject
For gemstone collectors
This ruby has several features likely to appeal to collectors:
- A generous weight of 33.72 carats
- A magnificent intense red color
- Particularly expressive light transmission
- Natural crystal morphology
- An African provenance that is relatively uncommon in the ruby trade
- A rough presentation allowing direct appreciation of the mineral matter
It is thus an interesting piece to enrich a collection focused on natural corundums or African gemstones.
For lapidaries and high-end jewelry creators
thanks to its volume and translucent zones, this ruby also holds interest for professional cutters.
A preliminary gemological study could explore various possibilities:
- Identifying zones suitable for faceting
- Creating cabochons highlighting color
- Designing an original jewelry piece
- Preserving the rough crystal in a custom mount
The choice will depend on the distribution of inclusions, fractures, crystallographic orientation, and likely yield.
Preserving the crystal in its natural state is also a particularly appealing option, maintaining full mineralogical authenticity.
Heritage value and collectible worth
Natural rubies have long held an important place in the international gemstone market.
Specimens with beautiful color, appreciable transparency, and interesting weight can attract the attention of collectors and professionals.
This 33.72 carat ruby presents several aesthetic and mineralogical qualities justifying its value as a collectible piece.
It can also be considered a heritage acquisition for a collector looking to build a natural gem collection.
Nevertheless, one should distinguish collectible value from financial return: any appreciation depends on the confirmed quality of the stone, any treatments, documented provenance, and market conditions.
Practical information and guarantees
Authenticity: presented as a natural rough ruby, in line with the information provided. Identification, any treatment absence, and geographic provenance are not certified here by an independent laboratory report.
Photographs: images are taken to highlight the stone’s characteristics. The use of transmitted lighting reveals color and translucency. Its appearance may vary with lighting conditions.
Photographed stone: you will receive exactly the specimen shown in the photographs.
Shipping: the stone will be carefully packaged and protected to ensure safe transport.
Storage: this ruby can be kept in a mineral collection, displayed in a case, or entrusted to a professional for an in-depth gemological study.
Conclusion – A natural ruby of 33.72 carats with stunning beauty
This remarkable rough ruby from Mauritania captivates with its raspberry-red intensity, its light under illumination, its 33.72-carat weight, and the richness of its natural crystal structures.
Its spectacular color and size make it particularly interesting for gemstone collectors, gemology enthusiasts, and lapidaries seeking characterful natural material.
Beyond its technical characteristics, this crystal bears witness to the beauty of geological processes that gave birth to one of the world's most iconic gemstones.
A superb collectible piece, combining authenticity, chromatic depth, and gemological fascination, destined for natural ruby enthusiasts of strong character.
Terms and Conditions of Sale – MineralsOpals:
At MineralsOpals, your satisfaction is paramount.
All orders are handled with the utmost care, from stone selection to final shipment.
- Shipping & timelines:
Dispatched within 1 to 3 business days, usually the day after the order.
Shipped Monday to Friday (excluding weekends and holidays).
Each package is sent via La Poste with a tracking number provided.
Careful packaging: each stone is individually protected, then placed in a rigid secure box.
- Warranty & customer service:
100% of shipments are guaranteed: if there is a problem, we always find a solution.
You buy with confidence: full refund, replacement, or commercial courtesy in case of loss or proven issue.
If you have questions, doubts, or a specific request, you can contact me at any time, I will gladly respond as soon as possible.
Trust & commitment
Each stone is photographed with care to reflect its natural beauty.
You benefit from personalized tracking.
My goal: to offer you a reliable, humane, and transparent shopping experience.
Thank you for your support.
Feel free to browse our non-reserve auctions to discover other exceptional products and follow us to stay informed about our new offers.
Seller's Story
Discover an exceptional natural rough ruby weighing 33.72 carats, originating from Mauritania, a gemstone particularly appealing for the intensity of its red color, its remarkable size, and its ability to transmit light.
This magnificent specimen reveals, under proper lighting, a vivid raspberry red color, interspersed with deep ruby-red and bright carmine pink nuances. Light penetrates certain zones of the crystal and reveals a striking chromatic richness, giving the stone an almost incandescent appearance.
Its natural morphology, generous dimensions, and visible crystal structures are assets for discerning collectors and gemology enthusiasts. With a weight over 33 carats, this ruby also represents an interesting rough material for specialized lapidaries, who will be able to study its crystallographic orientation and the possibilities for valorizing its translucent zones.
A piece of character, combining spectacular coloration, remarkable mineral presence, and all the fascination of natural rubies.
Technical characteristics
- Stone: Natural ruby
- Mineral variety: Red corundum
- Weight: 33.72 carats
- Dimensions: 20 × 13 × 12.5 mm
- Claimed origin: Mauritania, Africa
- Color: Intense red to raspberry red, with carmine pink nuances
- Transparency: Translucent, with good light transmission under illumination
- Shape: Natural rough crystal, uncut
- Chemical composition: Aluminum oxide (Al2O3)
- Hardness: 9 on the Mohs scale
- Crystal system: Trigonal
- Condition: Rough, showing its natural growth structures
- Treatments: Not determined by laboratory analysis
- Destination: Collection of gemstones, gemological study, lapidary creation
Gemological analysis – An exceptional chromatic intensity
A red color of remarkable depth
The most striking feature of this ruby is undoubtedly its magnificent red coloration, especially expressive when it is traversed by a light source.
Under transmitted illumination, the crystal reveals intense luminosity, highlighting several complementary tones:
- Deep ruby red: visible in the densest areas of the crystal, adding richness and depth to its color
- Bright raspberry red: particularly present in the lighter parts
- Intense carmine pink: perceptible in zones traversed by light
- Natural saturation variations: creating an aesthetic contrast between different parts of the specimen
This coloration is linked to the presence of chromium in the crystal structure of corundum, the element responsible for the characteristic red hues of ruby.
Photography under transmitted illumination illustrates well how light interacts with the crystal, revealing impressive chromatic intensity.
A remarkable weight of 33.72 carats
At 33.72 carats (6.744 grams), this ruby presents an interesting mass for a natural rough specimen.
Its dimensions of 20 × 13 × 12.5 mm give it a substantial volume, allowing observation of its crystallization characteristics and the various transparency zones.
The combination of weight, color, and morphology makes it truly interesting for collection and gemological study.
For a lapidary, this volume also provides a solid basis to examine potential cutting possibilities.
A seductive translucency and a fascinating natural structure
This specimen shows particularly aesthetic translucency under illumination, allowing light to pass through a significant portion of its structure.
Photography also reveals internal lines, growth variations, and natural features that attest to its geological history.
These characteristics are of interest for gemological observation.
The stone retains an authentic rough morphology, with natural surfaces and reliefs that give it its own identity.
The combination of these crystal structures and its luminous color makes it a visually captivating specimen.
History and rarity – The ruby, a legendary gemstone
A coveted stone for millennia
Ruby ranks among the most famous and sought-after gemstones in history.
Its name comes from the Latin ruber, meaning “red,” a direct reference to the intense color that has fascinated civilizations for centuries.
In antiquity, rubies were regarded as symbols of power, courage, and prosperity.
They occupied a privileged place in royal treasuries and gemstone collections.
Today, ruby remains part of the traditional quartet of the four major gemstones, alongside diamond, sapphire, and emerald.
A fascinating geological formation
Natural rubies form in particular geological environments, requiring favorable conditions of temperature, pressure, and chemical composition.
Their formation notably rests on the crystallization of corundum in the presence of chromium.
The meeting of these conditions explains why gem-quality ruby deposits remain relatively localized worldwide.
Crystals with attractive coloration, good light transmission, and exploitable volume are particularly sought after.
Mauritania – A singular African provenance
Africa today plays an important role in the world of gemstones, thanks in particular to its many corundum deposits.
Mauritania possesses diverse geological heritage, characterized by ancient formations and varied mineralogical environments.
Unlike historically recognized sources such as Myanmar, Mozambique, or Madagascar, Mauritania remains underrepresented on the international ruby market.
This declared provenance adds particular interest for collectors who appreciate less common origins.
Scientific confirmation of geographic origin would nonetheless require specialized gemological expertise and traceability elements.
A collectible piece and a remarkable lapidary study subject
For gemstone collectors
This ruby has several features likely to appeal to collectors:
- A generous weight of 33.72 carats
- A magnificent intense red color
- Particularly expressive light transmission
- Natural crystal morphology
- An African provenance that is relatively uncommon in the ruby trade
- A rough presentation allowing direct appreciation of the mineral matter
It is thus an interesting piece to enrich a collection focused on natural corundums or African gemstones.
For lapidaries and high-end jewelry creators
thanks to its volume and translucent zones, this ruby also holds interest for professional cutters.
A preliminary gemological study could explore various possibilities:
- Identifying zones suitable for faceting
- Creating cabochons highlighting color
- Designing an original jewelry piece
- Preserving the rough crystal in a custom mount
The choice will depend on the distribution of inclusions, fractures, crystallographic orientation, and likely yield.
Preserving the crystal in its natural state is also a particularly appealing option, maintaining full mineralogical authenticity.
Heritage value and collectible worth
Natural rubies have long held an important place in the international gemstone market.
Specimens with beautiful color, appreciable transparency, and interesting weight can attract the attention of collectors and professionals.
This 33.72 carat ruby presents several aesthetic and mineralogical qualities justifying its value as a collectible piece.
It can also be considered a heritage acquisition for a collector looking to build a natural gem collection.
Nevertheless, one should distinguish collectible value from financial return: any appreciation depends on the confirmed quality of the stone, any treatments, documented provenance, and market conditions.
Practical information and guarantees
Authenticity: presented as a natural rough ruby, in line with the information provided. Identification, any treatment absence, and geographic provenance are not certified here by an independent laboratory report.
Photographs: images are taken to highlight the stone’s characteristics. The use of transmitted lighting reveals color and translucency. Its appearance may vary with lighting conditions.
Photographed stone: you will receive exactly the specimen shown in the photographs.
Shipping: the stone will be carefully packaged and protected to ensure safe transport.
Storage: this ruby can be kept in a mineral collection, displayed in a case, or entrusted to a professional for an in-depth gemological study.
Conclusion – A natural ruby of 33.72 carats with stunning beauty
This remarkable rough ruby from Mauritania captivates with its raspberry-red intensity, its light under illumination, its 33.72-carat weight, and the richness of its natural crystal structures.
Its spectacular color and size make it particularly interesting for gemstone collectors, gemology enthusiasts, and lapidaries seeking characterful natural material.
Beyond its technical characteristics, this crystal bears witness to the beauty of geological processes that gave birth to one of the world's most iconic gemstones.
A superb collectible piece, combining authenticity, chromatic depth, and gemological fascination, destined for natural ruby enthusiasts of strong character.
Terms and Conditions of Sale – MineralsOpals:
At MineralsOpals, your satisfaction is paramount.
All orders are handled with the utmost care, from stone selection to final shipment.
- Shipping & timelines:
Dispatched within 1 to 3 business days, usually the day after the order.
Shipped Monday to Friday (excluding weekends and holidays).
Each package is sent via La Poste with a tracking number provided.
Careful packaging: each stone is individually protected, then placed in a rigid secure box.
- Warranty & customer service:
100% of shipments are guaranteed: if there is a problem, we always find a solution.
You buy with confidence: full refund, replacement, or commercial courtesy in case of loss or proven issue.
If you have questions, doubts, or a specific request, you can contact me at any time, I will gladly respond as soon as possible.
Trust & commitment
Each stone is photographed with care to reflect its natural beauty.
You benefit from personalized tracking.
My goal: to offer you a reliable, humane, and transparent shopping experience.
Thank you for your support.
Feel free to browse our non-reserve auctions to discover other exceptional products and follow us to stay informed about our new offers.
Seller's Story
Details
Disclaimer
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.

