68.43 CARATS !! PIGEON'S BLOOD RUBIES - TOP QUALITY GIANT - MOZAMBIQUE - Height: 28.4 mm - Width: 24.6 mm- 13.69 g - (1)

Discover this exceptional 68.43-carat natural rough ruby from Mozambique, one of the world’s most prestigious sources of high-quality rubies.

This remarkable gemstone stands out for its intense red color, reminiscent of the celebrated “Pigeon Blood Red” hue, which is especially sought after in the world of precious stones.

With an impressive weight of 68.43 carats (13.686 grams) and dimensions of 28.4 × 24.6 × 13 mm, this ruby has an exceptional presence for a rough stone intended for a collection or possible cutting assessment.

Its deep red color, combined with particularly bright pinkish-red nuances under transmitted light, is its main attraction.

The photograph reveals remarkable light transmission through certain parts of the stone, highlighting its intense color, internal structures, and natural growth features.

This ruby is presented as entirely natural, unheated, and untreated, thereby retaining its rough state and original mineralogical characteristics.

Large natural rubies attract particular attention from collectors and gemology professionals, especially when they display rich color and appreciable translucency.

An imposing natural gemstone combining remarkable weight, spectacular red color, and the prestige of Mozambique’s famous deposits.


Technical specifications

- Gemstone: Natural ruby
- Mineral variety: Red corundum
- Declared origin: Mozambique
- Weight: 68.43 carats
- Dimensions: 28.4 × 24.6 × 13 mm
- Color: Intense red with pinkish-red nuances
- Commercial hue referenced: Pigeon Blood Red (pigeon’s blood), uncertified
- Transparency: Translucent in some areas under transmitted light
- Shape: Irregular natural rough crystal
- Luster: Vitreous on favorable surfaces
- Hardness: 9 on the Mohs scale
- Treatments: None (0 treatments) — declared unheated and untreated
- Condition: Natural rough, with visible internal structures and growth marks
- Intended for: Gemstone collection, gemology, and assessment of possible cutting potential


A spectacular red color – The appeal of the famous “pigeon blood” hue


The most remarkable feature of this ruby is unquestionably its magnificent red color.

Under suitable lighting, the stone reveals an especially bright red, accompanied by pink and purple nuances that enhance its visual depth.

Light passing through certain parts of the crystal creates a spectacular effect, revealing a genuine concentration of color at the heart of the gem.

In the ruby trade, the expression “pigeon blood” refers to a particularly prized category of red, generally associated with high saturation and a specific color balance.

This is one of the most prestigious designations in gemology.

Historically, it has been associated with the famous Burmese rubies, although some stones from Mozambique can also display color characteristics that meet criteria established by various gemological laboratories.

The color of this specimen visually evokes this particularly sought-after category.

However, the official assignment of the “Pigeon Blood Red” designation requires an independent gemological assessment conducted under standardized viewing conditions.

The transmitted-light photograph particularly emphasizes the red saturation, but on its own cannot determine the stone’s definitive commercial classification.

A ruby whose magnificent color intensity is a major aesthetic asset, with a hue reminiscent of the most iconic shades of this precious stone.


Mozambique – An origin that has become indispensable in the world of rubies


Mozambique now occupies a major position in the international gemstone industry.

Located on the eastern coast of Africa, the country has exceptionally rich geology, particularly in its northern region.

The Montepuez region in Cabo Delgado Province became world-famous following the discovery of major ruby deposits in the late 2000s.

These discoveries profoundly transformed the international ruby market.

For centuries, Burma, now Myanmar, dominated the imagination of collectors and jewelers thanks to its famous Mogok rubies.

The emergence of Mozambique revealed a new major source of natural rubies, some of which have remarkable colors and gemological qualities.

Mozambican rubies can display a wide range of hues, from pinkish red to deep red, sometimes with particularly intense saturation.

Some crystals also have high transparency, while others retain inclusions and internal structures characteristic of their natural formation.

Today, Mozambican rubies are found in private collections, gemological laboratories, and international high jewelry creations.

A prestigious source, now associated with some of the most important ruby discoveries in modern gemological history.


An exceptional geological formation – The natural origin of ruby


Ruby is the red variety of corundum, a mineral whose formation requires specific geological conditions.

Its characteristic color is mainly due to the presence of chromium in its crystal structure.

The concentration of this element, together with other chemical and structural characteristics, directly influences the intensity and hue of its color.

Mozambican rubies formed in complex metamorphic environments through geological processes involving high temperatures and pressures.

These transformations favored the crystallization of corundum in rocks with suitable chemical conditions.

Over time, tectonic movements, erosion, and rock transformations helped make some of these crystals accessible.

Each rough ruby is therefore the result of a long geological history.

The internal structures visible in this stone, including lines and irregularities revealed by light, bear witness to its natural character and crystal history.

These features may be of particular interest to collectors wishing to observe gemstones before any alteration.

A true natural formation, whose color and structure result from exceptional geological processes.


A remarkable weight of 68.43 carats – A particularly imposing specimen


At 68.43 carats, this ruby immediately stands out for its substantial size.

Ruby crystals can naturally reach considerable weights, but stones combining significant mass, beautiful color, and interesting gemological characteristics attract particular interest.


The commercial rarity of a rough ruby nevertheless depends on several key criteria:

- The intensity and evenness of its color.
- Its degree of transparency.
- The nature and distribution of its inclusions.
- The extent of its internal fractures.
- Its state of preservation.
- Its potential yield when cut.
- Confirmation of its origin and the absence of treatments.

This specimen has a particularly interesting weight, along with an intense red color visible under transmitted light.

Its dimensions of 28.4 × 24.6 × 13 mm give it a remarkable presence in a collection.

The stone also displays visible natural features, including darker areas, internal lines, and surface irregularities.

These elements contribute to its mineralogical identity and should be taken into account in any gemological assessment.

An imposing rough stone whose weight and color are its main assets, particularly interesting to enthusiasts of large natural rubies.


A natural, unheated, and untreated gemstone – A sought-after character


The absence of treatment is an important criterion in the evaluation of natural rubies.

A large proportion of the rubies sold worldwide undergo heat treatments intended to improve their appearance, particularly their color or transparency.

Unheated natural rubies therefore hold a special place in the gemstone market.

They are sought after by collectors wishing to acquire gems whose characteristics have not been artificially altered.

This specimen is declared to be 100% natural, unheated, and untreated.

Its red color is therefore presented as resulting exclusively from its natural geological formation.

This feature enhances its appeal for a collection devoted to rough gems and natural precious stones.

It should nevertheless be noted that independent gemological certification is still required to officially confirm the absence of heat treatment or other interventions.

A stone presented in its natural state, retaining its rough character and original color.


Collection or cutting assessment – Two complementary interests


This ruby has a dual appeal.

As part of a mineralogical collection, it is an imposing specimen that allows the color, natural surfaces, and internal features of a rough ruby from Mozambique to be appreciated directly.

Its substantial weight and bright red color make it a particularly interesting specimen for an exhibit devoted to large natural gemstones.

In gemology, its dimensions may also warrant an in-depth assessment of its cutting potential.

The presence of translucent areas under transmitted light is visually interesting, but does not guarantee that a quality faceted gemstone can be obtained.

Such an assessment would require a thorough examination of its actual transparency, fractures, inclusions, crystallographic orientation, and potential yield.

The stone can therefore be appreciated first and foremost as a remarkable rough specimen, while also offering scope for possible lapidary assessment.


Conclusion – A natural ruby remarkable for its color and size


This exceptional 68.43-carat rough ruby from Mozambique, measuring 28.4 × 24.6 × 13 mm, is a magnificent piece for enthusiasts of natural gemstones.

Its spectacular red color, reminiscent of the prestigious “pigeon blood” hue, its visible translucency under transmitted light, and its imposing dimensions give it a remarkable presence.

Presented as entirely natural, unheated, and untreated, it retains the characteristics of a rough gemstone from Mozambique’s famous deposits.

The geological history of its formation, the international renown of Mozambican rubies, and its particularly substantial weight enhance its appeal to collectors.

A magnificent 68.43-carat rough gemstone combining intense red color, exceptional presence, and all the prestige of natural Mozambican rubies.




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