Violet Gemstones

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Object

Faceted gemstone

Country of origin

No origin given

Tanzania

Madagascar

Mozambique

Sri Lanka

Belgium

Pakistan

Stone

Sapphire

Tanzanite

Ruby

Spinel

Kunzite

Certification

International Gemological Institute (IGI)

Antwerp Laboratory for Gemstone Testing (ALGT)

International Colored Gemstone Association (ICA GemLab)

Gemological Institute of America (GIA)

Lotus Gemology

Gem research Swiss Lab (GRS)

Asian Institute of Gemological Sciences (AIGS)

Instituto Gemólogico Español (IGE)

Bellerophon Gemlab

Colour

Violet

Blue

Pink

Purple

Green

Mixed cut

Cushion

Oval

Modified brilliant cut

Octagon

Modified cut

Emerald cut

Brilliant cut

Emerald

Pear

Step cut

Faceted cut

Cabochon cut

Round

Square

Clarity

Eye clean

Moderate

Loupe clean

Slight

Treatment

No evidence of treatment

No heat treatment

Heat treatment

Not specified in the report

Commonly heated with no evidence of treatment

Oiling

Gemstone transparency

Transparent

Pearl luster

Excellent

Very good

Fair

Good

Optical effect (gemstones)

Colour change

Size: 16.29 x 12.21 x 8.85 mm.
Clarity: Transparent.
Color quality: Good color quality.
Treatment: Unknown.
Condition: light damage visible

Tanzania - Not specified in the report-  Lab report: 42270875

No reserve price Blue, Purple, Violet Tanzanite  - 15.66 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Natural Ruby.
Pear-shaped.
Weight. 1.21 ct.
Dimensions. 7.91 x 5.22 x 3.22 mm.
Color. AA - Vivid deep red.
Certificate IGE No.: 92320568481

No origin given - No evidence of treatment-  Lab report: 92320568481

1 pcs  Red, Violet Ruby  - 1.21 ct - Instituto Gemólogico Español (IGE)

species: natural corundum.
variety: natural violet sapphire.
weight: 1.41 cts.
dimensions: 7.63 x 5.42 x 3.38 mm.
cut: brilliant / step.
shape: cushion.
transparency: transparent.
phenomena: none.
color: violet.
treatments: no indications of heating (nte)

comments: none.

No origin given - No evidence of treatment-  Lab report: th26g123931

No reserve price - 1 pcs  Violet Sapphire  - 1.41 ct - International Colored Gemstone Association (ICA GemLab)

Gorgeouse Fine Color Quality Tanzanite.
IGI report number : 764645494.
Species : Natural Zoisite.
Variety : Tanzanite.
Shape : Pear mixed cut.
Weight : 2.59 ct.
Size : 1,65 x 8,06 x 5,02 mm.
Treatment: Heated.
Color : Bluish Violet.
Transparency : Transparent.
Clarity:  Eye

Commonly heated with no evidence of treatment-  Lab report: 764645494

Blue, Violet Tanzanite  - 2.59 ct - International Gemological Institute (IGI) - Fine Color Quality

Pinkish Purple Sapphire 1.63 ct.
Cushion: 8.25 x 5.98 x 3.73 mm.
Vivid/Deep Pinkish Purple.
Transparent.
Color Quality Grade - Fine Color Quality.
Indications of heating present.
24.03.2026 ALGT: 98931449.
Sri Lanka

Sri Lanka - Heat treatment-  Lab report: 98931449

No reserve price - 1 pcs  Purple, Pink, Violet Sapphire  - 1.63 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Purplish Pink Sapphire 2.14 ct.
Round:  7.67-7.87 x 4.23 mm.
Intense /Vivid Purplish Pink.
Transparent.
Color Quality Grade - Fine Color Quality.
Indications of heating present.
26.03.2026 ALGT : 03280879.
Madagascar

Madagascar - Heat treatment-  Lab report: 03280879

No reserve price - 1 pcs  Pink, Violet Sapphire  - 2.14 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

No Reserve Price 

Natural Tanzanite with Full - IGI - International Gemological Institute.
Report Number ------------- 788682333.
Report Date ------------- April 30, 2026.
Species ------------- Natural Zoisite.
Variety ------------- TANZANITE.
Description ------------- 1 Loose

Heat treatment-  Lab report: 788682333

No reserve price - 1 pcs  Violet, Blue Tanzanite  - 3.29 ct - International Gemological Institute (IGI) - 9mm SQUARE CUT TANZANITE

IGI Report # 805623673.
May 28, 2026.
LBXL - UUYZ  (R)

==================================================================

Species....................................................... Natural Spinel.
Shape And Cutting Style................ Cushion Mixed Cut.
Weight

No heat treatment-  Lab report: 805623673

1 pcs  Violet Spinel  - 4.50 ct - International Gemological Institute (IGI)

AIGS Colored Stone Report.
Report Number: GF26050610.
Report Date: 20-05-2026.
Identification: Natural Ruby.
Weight: 2.02 Carats.
Dimensions: 7.61 x 6.08 x 3.97 mm.
Cut: Faceted.
Shape: Cushion.
Color: Vivid Pinkish Red.
Comments: 
No Indication of heat treatment: NTE.
The

Mozambique - No evidence of treatment, No heat treatment-  Lab report: GF26050610

1 pcs  Violet, Pink, Red Ruby  - 2.02 ct - Asian Institute of Gemological Sciences (AIGS) - Unheated Natural Ruby

Report Nr.	737580512	
Gemstone	Sapphire	
Size	7.68 x 5.94 x 3.98 mm	
Clarity	See Picture	
Treatment	No Indications of Heating	
 		
Weight	2.12 ct.		
Color	Greenish Blue / Purple	
Cut	Emerald Cut	
Origin	Sri Lanka	
Certificate Included		
Item Number	00000164988	
N.B. Country of

No origin given - No heat treatment-  Lab report: 737580512

1 pcs  Green, Blue, Violet Sapphire  - 2.12 ct - International Gemological Institute (IGI) - Color Change

Beautiful Tanzanite of 23.37 Ct.
Comes with IGI authenticity report.

Tanzanite Details :

IGI Report No. :- 809638198.
Species :- Natural Zoisite.
Variety :- Tanzanite.
Shape & Cutting Style :-  Square Emerald Mixed Cut.
Total Carat Weight :- 23.37 Ct.
Measurements :- 17.17 X

Tanzania - Heat treatment-  Lab report: 809638198

1 pcs  Violet Tanzanite  - 23.37 ct - International Gemological Institute (IGI) - TANZANITE

Report - GRS.
Report.No - GRS2021-022932.
Weight -5.46 cts.
Shape - Cushion.
Cut - Faceted.
Measurement - 9  x 9 x 6 mm.
Treatment - Unheated.
Color - Pastel Grayish Violet.
Origin - Burma(Myanmar)





No evidence of treatment-  Lab report: GRS2021-022932

Violet Spinel  - 5.46 ct - Gem research Swiss Lab (GRS)

2026-01-16.
ICA Gems Lab Report Number # TH26G111517.
PIN:9247.
XYZR - LMY (V)

===================================================================================

Species ..................................................................... Natural Zoisite.

Commonly heated with no evidence of treatment-  Lab report: TH26G111517

No reserve price - 1 pcs  Violet Tanzanite  - 4.95 ct - International Colored Gemstone Association (ICA GemLab)

Welcome To Gem Sanctuary!!
Have a Great Time Visiting The store.

Gemstone Type: Natural Tanzanite.
Species: Natural Zoisite.
Dimensions: 16.04 x 15.89 × 10.08 mm.
Clarity: Transparent.
Color: Violetish-Blue (Rare Tone)
Shape: Pear.
Treatments: No Indication Of Treatments

Tanzania - No heat treatment-  Lab report: 2971-7353

Violet, Blue Tanzanite  - 15.85 ct - Lotus Gemology - Top Tier Gem {No-Heat}

Welcome To Gem Sanctuary!!
Have a Great Time Visiting The store.

Gemstone Type: Natural Tanzanite.
Species: Natural Zoisite.
Dimensions: 15.16 x 11.81 x 8.27 mm.
Clarity: Transparent.
Color: Bluish-Violet.
Shape: Oval.
Treatments: No Indication Of Treatments (Natural Unheat Gem)

Tanzania - No heat treatment-  Lab report: 3611-9363

Blue, Violet Tanzanite  - 10.20 ct - Lotus Gemology - Lovely Rare Gem {No-Heat}

GIA Report Number :  2557304134.
Date of Issue : May 27, 2026.
LYAZY   (R)

============================================================================

Item Description: One loose stone.
Weight: 2.47 carats.
Measurements: 7.30 x 7.25 x 4.94 mm.
Details.

Sri Lanka - No heat treatment-  Lab report: 2557304134

Blue, Violet Sapphire  - 2.47 ct - Gemological Institute of America (GIA) - Sri Lanka No-Heat Natural

Natural Zoisite with IGI Report.
IGI Report no : 728535348.
Species : Natural Zoisite.
Vareity : Tanzanite.
Shape : Emerald.
Cutting Style : Emerald Cut.
Weight : 5.88 Carat.
Size : 11.33 x 9.19 x 6.32 mm.
Treatment: Commonly Enhanced.
Color : Violetish Blue.
Transparency:

No origin given - Commonly heated with no evidence of treatment-  Lab report: 728535344

1 pcs  Blue, Violet Tanzanite  - 5.88 ct - International Gemological Institute (IGI) - Natural Tanzanite

Tanzanite is known for its distinctive play of color between blue and violet and comes exclusively from a limited mining area, which makes this gemstone especially beloved by collectors and jewelry enthusiasts.

Specifications:

* Gemstone: Natural Tanzanite (Zoisite)
*

No origin given - Not specified in the report-  Lab report: 799627246

1 pcs  Blue, Violet Tanzanite  - 2.18 ct - International Gemological Institute (IGI)

GRS Report No : 6555478421.
Weight : 50.18 Carats.
Species : Tanzanite  

Color : Vivid Violet Blue.
Shape : Cushion 

Measurements : 28.07 x 17.83 x 12.59 (mm)

Comments: No indication of thermal treatment.
Origin : Tanzania.
Please check GIA Report for further information.


Tanzania - Not specified in the report-  Lab report: 6555478421

1 pcs  Blue, Violet, Purple Tanzanite  - 50.18 ct - Gemological Institute of America (GIA) - No HEAT “ D BLOCK “

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Commonly heated with no evidence of treatment-  Lab report: 774669655

No reserve price Violet, Blue Tanzanite  - 3.55 ct - International Gemological Institute (IGI) - PRECISION CUTTING - CLEAN

*No additional VAT or import duties for bidders within the EU*

Εxceptional Sapphire gemstone suitable for jewellery or an investment-grade piece.
Full physical ALGT Certificate included.

*Combined shipping — If you win multiple stones, pay one, and message to combine the rest.*

No origin given - Heat treatment-  Lab report: 85914452

No reserve price - 1 pcs  Blue, Violet Sapphire  - 1.07 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

ITEM.             Natural  spodumene 

WEIGHT.          24.10.
SIZE.               15.97x13.97x13.16mm.
ORIGIN.           Afghanistan 

SHAPE.             Octagonal

No origin given - Not specified in the report-  Lab report: TH26G124653

No reserve price - 1 pcs  Pink, Violet Kunzite  - 24.10 ct - International Colored Gemstone Association (ICA GemLab)

Ruby 0.73 ct.
Oval: 5.85 x 5.05 x 2.68 mm.
Deep/Dark Red (Purplish)
Transparent.
No Indications of heating.
Moderate amount of oil in fissures.
23.03.2026 ALGT: 76276566

Mozambique - Oiling, No evidence of treatment-  Lab report: 76276566

No reserve price - 1 pcs  Red, Violet Ruby  - 0.73 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Violet Gemstones. Buy unique objects. Now at auction for sale | Catawiki

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Violet Gemstones

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