Natural, rarely clearer tanzanite Intense blue raw crystal highlight with exceptional brilliance - 37.85 ct- 7.57 g
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Selected by Antonio Rapisarda
Holds a master’s in chemistry with 25 years’ experience in minerals consulting.
Estimate € 140 - € 170
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Natural, rare clear Tanzanite in rough form from Merelani, Tanzania, 37.85 ct (7.57 g), 20x19x16 mm, irregular shape, untreated.
AI-assisted summary
Description from the seller
This raw Tanzanite already reveals its exceptional quality at first glance: a vibrant, deep blue that transforms under light into an almost supernatural glow. The natural transparency of the crystal clearly shows its inner fire – a rare feature, as most rough pieces appear significantly cloudier. The fine, glass-like structures inside give the stone impressive depth, while the characteristic blue to slightly violet hues flow elegantly into each other.
The rough surface also possesses its own unique charm: it reveals the natural structure of the zoisite crystal with its parallel lines and mineral inclusions, emphasizing the authenticity and originality of this piece. Under strong light, the tanzanite reveals an intense, almost electric blue – a effect that makes it a unique collector's item.
Tanzanite is one of the most sought-after gemstones in the world, not least because of its extremely limited sources and the growing demand among collectors and mineral enthusiasts. This piece combines rarity, natural character, and visual brilliance in an impressive way – a stone that makes an extraordinary impact both in a high-quality collection and as a decorative standalone piece.
Weight 37.85 ct
Size: 20x19x16mm
100% Natural Tanzanite
Irregular
Color as picture
Clarity, like a picture
Origin Tanzania, Merelani
None at all
Hardness 6.5-7.0
Refractive Index 1.69-1.70
Our shipping costs have been verified and approved by Catawiki.
We have an external shipping company that handles final inspection, pickup, packaging, and the
Perform shipping; this results in these shipping costs.
Buyer bears all potential import and export costs, customs duties, shipping costs, etc.
See also our other articles and shipping costs, save on pickup costs.
In some of the images, the stone was backlit to show you the color of the stone.
With some stones, we held a light beneath the stone to better show the color of the pieces. And it can lead to deviations in colors, etc., since each computer, monitor, and mobile phone may display different qualities of colors!
#christmashobby
This raw Tanzanite already reveals its exceptional quality at first glance: a vibrant, deep blue that transforms under light into an almost supernatural glow. The natural transparency of the crystal clearly shows its inner fire – a rare feature, as most rough pieces appear significantly cloudier. The fine, glass-like structures inside give the stone impressive depth, while the characteristic blue to slightly violet hues flow elegantly into each other.
The rough surface also possesses its own unique charm: it reveals the natural structure of the zoisite crystal with its parallel lines and mineral inclusions, emphasizing the authenticity and originality of this piece. Under strong light, the tanzanite reveals an intense, almost electric blue – a effect that makes it a unique collector's item.
Tanzanite is one of the most sought-after gemstones in the world, not least because of its extremely limited sources and the growing demand among collectors and mineral enthusiasts. This piece combines rarity, natural character, and visual brilliance in an impressive way – a stone that makes an extraordinary impact both in a high-quality collection and as a decorative standalone piece.
Weight 37.85 ct
Size: 20x19x16mm
100% Natural Tanzanite
Irregular
Color as picture
Clarity, like a picture
Origin Tanzania, Merelani
None at all
Hardness 6.5-7.0
Refractive Index 1.69-1.70
Our shipping costs have been verified and approved by Catawiki.
We have an external shipping company that handles final inspection, pickup, packaging, and the
Perform shipping; this results in these shipping costs.
Buyer bears all potential import and export costs, customs duties, shipping costs, etc.
See also our other articles and shipping costs, save on pickup costs.
In some of the images, the stone was backlit to show you the color of the stone.
With some stones, we held a light beneath the stone to better show the color of the pieces. And it can lead to deviations in colors, etc., since each computer, monitor, and mobile phone may display different qualities of colors!
#christmashobby
Details
Main Mineral
Natural, rarely clearer tanzanite
Mineral Form
Intense blue raw crystal highlight with exceptional brilliance - 37.85 ct
Weight
7.57 g
Origin (Region/ City)
Merelani
Country of Origin
Tanzania
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.
