Ceylon Natural Cobalt Spinel


Cobalt spinel is rare colour variety in Spinel family. Depending on the concentration of cobalt, color saturation can theoretically range from light blue to vivid blue.



Ceylon Natural Cobalt Spinel

Colour :Blue
Weight:0.90 Ct
Dimension:5.9 x 5.2 x 3.7 mm
Clarity:Loup Clean (High grade)
Variety:Cobalt Spinel
Species:Natural Spinel
Origin:Ratnapura, Sri Lanka 🇱🇰
Quality Grade:Gem Quality (high quality commercial grade)
Treatment :Natural/ Unheated
Type:Loose faceted stone

• CSL – Colored Stone Laboratory Certified
( Gemological Institute of America “GIA” Alumina Association Member )

All orders are shipped through the Sri Lankan National Gem and Jewelry Authority with insurance. We will provide you with a tracking number as soon as the order is shipped. Please message us if you have any additional questions. We are always ready to give you better customer service all the time

REGULAR IMAGES: Mobile Phone Photography Under Day Light. No Colour enhancement or any edits Only attached watermark.



We are known as ” a rising star in the gemstone family”. A gem that was not so commercially valuable in the past but is now a highly valued and attractive gem variety in the world colour gemstone market. Spinel is highly valued in the international market as a substitute for corundum due to its wide range of amazing colours and durability.

Cobalt spinel is rare colour variety in Spinel family. Depending on the concentration of cobalt, color saturation can theoretically range from light blue to vivid blue.

This natural Spinel contains cobalt in its chemical formula, which turns a Blue Spinel into the most wanted collector’s Gem. This Cushion shape cobalt spinel is found from underground mining in the city of gem Ratnapura, Sri Lanka. Danu group is humbly pleased to be able to provide such precious gems to the customer directly from the source. Explore more with Danu Group Gemstones Collections!


Spinel is the magnesiumaluminum member of the larger spinel group of minerals with chemical formula MgAl₂O₄. Spinel is actually a large group of minerals. Gahnite, hercynite, ceylonite, picotite, and galaxite are all part of the spinel group.

This oxide mineral is a Cubic crystal system with 7.5–8.0 hardness according to the Mohs hardness scale. Spinels Specific Gravity is depending on the composition of chemicals such as Zn-rich spinel can be as high as 4.40, otherwise, it averages from 3.58 to 3.61.

Spinel has many colours such as red, pink, blue, lavender/violet, dark green, brown, black, colourless, grey. Spinel is a single reflective Non-pleochroic gemstone and Anomalous in some blue zincian varieties. It can be found as Opaque, Translucent or transparent. Spinel RI value is n = 1.719

red and pink spinels have fluorescence under UV Light

Some red and pink spinels have fluorescence under UV Light. also, Some spinels have magnetism Weak to medium. Natural spinels typically are not enhanced.

gemstones found world map

Spinels are found in Madagascar, Sri Lanka, Vietnam, Myanmar, Tanzania, Kenya, Nigeria, Afghanistan, Albania, Algeria, Atlantic Ocean, Australia, Belgium, Bolivia, Brazil, Cambodia, Canada.

Spinel has long been found in the gemstone-bearing gravel of Sri Lanka. Since 2000 in several locations around the world have been discovered spinels with unusual vivid colours.

when the mineral is pure, it’s colourless. That’s called allochromatic gemstones. Also, Spinels are found with 4-rayed stars and 6-rayed stars.

Some spinels are found with a colour-changing effect such as Blue to violet, Grayish-blue to reddish-violet, Violatish-Blue to Grayish-Violet and some stones from Sri Lanka change from violet to reddish violet, due to the presence of Fe, Cr, and V.

Blue Spinel is a very special gemstone because it is one of the few that occur naturally. The blue Spinel is coloured from the impurity of Cobalt in the crystal lattice. High Color saturation in blue Spinels are always coloured by Cobalt and are extremely rare to find. Cobalt spinel has a high market value.

Gemstones Properties

We must remember that the most powerful of all is our mind power. The use of gemstones in the chemical, wave and vibration energy of the gemstones can only be of some help to the well being of man. It is like a fence on the stairs. The stair fence is not essential for climbing stairs. But having a stair fence will make it easier to climb the stairs. That is also the case with using a gemstone. Almost every gem has its own vibrational and waves energy. also, the chemical properties of the gemstones are very special. Gemstones are used to cure diseases and to stimulate and balance the energy fields of the human body by the chemical composition and other energies of the gemstones.

Healing Properties of Spinels 👇

Spinel is known as the stone of revitalization. This MgAl2O4 mineral chemical healing and colour energies make the gums and teeth stronger and are also beneficial for skin, slimming the healthy and overweight body and cancer healing. also, Spinel promotes physical vitality, refills the energy and eases exhaustion. Spinel is a very soothing stone, as it calms and relieves stress, anxiety, PTSD and depression.

Spinel Vibrational energies work with circulations of the body and it will help to balance circulations, heart health and keep calm your mind.

Also, Spinel is working with chakra balancing. Black Spinel – Earth Star Chakra, Red – Spinel Base Chakra, Green Spinel – Heart chakra, Blue Spinel – Throat chakra, Indigo Spinel – Third eye chakra, Purple Spinel – Crown chakra.

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