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Auction Description for Silesia Art Hause: Natural Precious Gems

Natural Precious Gems (176 Lots)

by Silesia Art Hause


176 lots with images

December 1, 2016

Live Auction

Dresden, Saxony, Germany

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Violet  Tanzanite 5.27 ct

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Description: Gemstone type: Natural Tanzanite; Certification: GIA 2218795970; Colour: violet; Shape: oval facetted; Transparency: transparent; Weight: 5.27 carat approx; Hardness: 6.50 - 7.0 (Mohs Scale)

Condition Report: Clarity: VS; Treatment: normal heated; hand made grinding

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Purple Sapphire 0.88 ct

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Description: Gemstone type: Natural Sapphire; Colour: purple; Shape: oval facetted; Transparency: transparent; Weight: 0.88 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: None, unheated; hand made grinding

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Purple Sapphire 0.57 ct

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Description: Gemstone type: Natural Sapphire; Certification: Tokyo Gem Lab: 26070247; Colour: purple; Shape: pear facetted; Transparency: transparent; Weight: 0.57 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: Normal heated; hand made grinding

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Blue Sapphire 0.93 ct

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Description: Gemstone type: Natural Sapphire; Certification: CGJ (alumni GIA) 6597; Colour: cornflower blue; Shape: cushion facetted; Transparency: transparent; Weight: 0.93 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Blue Sapphire 1.42 ct

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Description: Gemstone type: Natural Sapphire; Certification: IGI 22465374; Colour: medium blue; Shape: oval facetted; Transparency: transparent; Weight: 1.42 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: Normal heated; hand made grinding

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Orange Coral 3.55 ct

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Description: Gemstone type: Natural Coral; Certification: GII GEM-15001990-001; Colour: orange; Shape: oval cabochon; Transparency: opaq; Weight: 3.55 carat approx; Hardness: 6.5 - 7.0 (Mohs Scale)

Condition Report: Treatment: None, unmounted; hand made grinding

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Cat Eye's Green Chrysoberyl 1.16 ct

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Description: Gemstone type: Natural Cat Eye's Chrysoberyl; Colour: light green; Shape: oval cabochon; Transparency: translucent; Weight: 1.16 carat approx; Hardness: 8.5 (Mohs Scale)

Condition Report: Treatment: None, untreatment; hand made grinding

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Yellow Citrine 138 ct

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Description: Gemstone type: Natural Citrine; Colour: yellow; Shape: trillion facetted; Transparency: transparent; Weight: 138 carat approx; Hardness: 7.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: normal heated; hand made grinding

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Star White Sapphire 2.69 ct

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Description: Gemstone type: Natural Star Sapphire; Colour: white; Shape: oval cabochon; Transparency: translucent; Weight: 2.69 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Treatment: None, unheated; hand made grinding

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Blue Sapphire 1.35 ct

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Description: Gemstone type: Natural Sapphire; Certification: BGL L01375; Colour: cornflower blue; Shape: oval facetted; Transparency: transparent; Weight: 1.35 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Blue Aquamarine 0.792 ct

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Description: Gemstone type: Natural Aquamarine; Certification: IGL 22231-4; Colour: blue; Shape: cushion facetted; Transparency: transparent; Weight: 0.792 carat approx; Hardness: 7.5 - 8.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Blue Sapphire 1.46 ct

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Description: Gemstone type: Natural Sapphire; Certification: AIGS GF16082042; Colour: blue; Shape: octagonal facetted; Transparency: transparent; Weight: 1.46 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Blue Aquamarine 3.14 ct

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Description: Gemstone type: Natural Aquamarine; Colour: blue; Shape: octagonal facetted; Transparency: transparent; Weight: 3.14 carat approx; Hardness: 7.5 - 8.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Blue Sapphire 1.71 ct

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Description: Gemstone type: Natural Sapphire; Certification: BGL L01374; Colour: blue; Shape: cushion facetted; Transparency: transparent; Weight: 1.71 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VS; Treatment: None, unheated; hand made grinding

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Green Tourmaline 4.21 ct

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Description: Gemstone type: Natural Tourmaline; Colour: green; Shape: oval facetted; Transparency: transparent; Weight: 4.21 carat approx; Hardness: 7.0 - 7.5 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: None, unheated; hand made grinding

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Green Emeralds pair 3.48 ct

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Description: Gemstone type: Natural 2 Emeralds; Certification: only one gem: 1.68 ct GJPEC J9893CA108403; Colour: green; Shape: oval facetted; Transparency: translucent; Weight: Total: 3.48 ct; 1.68 and 1.80 carat approx; Hardness: 7.5 - 8.0 (Mohs Scale)

Condition Report: Clarity: Si2; Treatment: oil treatment; hand made grinding

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Orange Spessartite 1.01 ct

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Description: Gemstone type: Natural Spessartite; Colour: orange; Shape: oval facetted; Transparency: transparent; Weight: 1.01 carat approx; Hardness: 6.5 - 7.5 (Mohs Scale)

Condition Report: Clarity: VS; Treatment: None, unheated; hand made grinding

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Purplish Red Ruby 0.30 ct

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Description: Gemstone type: Natural Ruby; Colour: purplish Red; Shape: pear facetted; Transparency: transparent; Weight: 0.30 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Red Spinel 1.27 ct

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Description: Gemstone type: Natural Spinel; Colour: red; Shape: cushion facetted; Transparency: transparent; Weight: 1.27 carat approx; Hardness: 8.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Purple Sapphire 1.10 ct

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Description: Gemstone type: Natural Sapphire; Certification: Tokyo Gem Laboratory 26070248; Colour: purple; Shape: oval facetted; Transparency: transparent; Weight: 1.10 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VS; Treatment: Normal heated; hand made grinding

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Crystal Opals pair 6.255 ct

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Description: Gemstone type: Natural 2 Crystal Opals; Colour: red, green, blue; Shape: oval facetted; Transparency: transparent; Weight: Total: 6.255 ct: 3.04 and 3.21 carat approx; Hardness: 5.5 - 6.5 (Mohs Scale)

Condition Report: Treatment: None, untreatment; hand made grinding

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Blue Sapphire 1.24 ct

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Description: Gemstone type: Natural Sapphire; Certification: AIGS GF16080473; Colour: blue; Shape: cushion facetted; Transparency: transparent; Weight: 1.24 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Yellow Orthoclase 18.17 ct

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Description: Gemstone type: Natural Orthoclase; Certification: CGJ (alumni GIA) 24848; Colour: yellow; Shape: cushion facetted; Transparency: transparent; Weight: 18.17 carat approx; Hardness: 6.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None; hand made grinding

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Green Tourmaline 2.06 ct

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Description: Gemstone type: Natural Tourmaline; Cerificate: Colour: green; Shape: octagon facetted; Transparency: transparent; Weight: 2.06 carat approx; Hardness: 7.0 - 7.5 (Mohs Scale)

Condition Report: Clarity: VS; Treatment: None, unheated; hand made grinding

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Green Emerald 2.04 ct

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Description: Gemstone type: Natural Emerald; Certification: GJPEC J9893CA108404; Colour: green; Shape: octagon facetted; Transparency: translucent; Weight: 2.04 carat approx; Hardness: 8.5 (Mohs Scale)

Condition Report: Clarity: I1; Treatment: oil treatment; hand made grinding

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White Diamond 0.23 ct

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Description: Gemstone type: Natural Diamond; Certification: AIG D81657454BE; Colour: E; Shape: round facetted; Transparency: transparent; Weight: 0.23 carat approx; Hardness: 10.00 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: None; hand made grinding

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Orange Coral 3.62 ct

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Description: Gemstone type: Natural Coral; Certification: GII GEM-15001990-002; Colour: orange; Shape: oval cabochon; Transparency: opaq; Weight: 3.55 carat approx; Hardness: 6.5 - 7.0 (Mohs Scale)

Condition Report: Treatment: None, unmounted; hand made grinding

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Blue Green Tourmaline 1.52 ct

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Description: Gemstone type: Natural Tourmaline; Colour: blue, green; Shape: octagon facetted; Transparency: transparent; Weight: 1.52 carat approx; Hardness: 7.0 - 7.5 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Blue Sapphire 1.76 ct

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Description: Gemstone type: Natural Sapphire; Certification: AIGS GF16080474; Colour: blue; Shape: pear facetted; Transparency: transparent; Weight: 1.76 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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White Diamond 0.25 ct

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Description: Gemstone type: Natural Diamond; Certification: AIG D8165744BE; Colour: H; Shape: round facetted; Transparency: transparent; Weight: 0.25 carat approx; Hardness: 10.00 (Mohs Scale)

Condition Report: Clarity: VS1; Treatment: None; hand made grinding

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Green Emerald 1.29 ct

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Description: Gemstone type: Natural Emerald; Colour: green; Shape: octagon facetted; Transparency: transparent; Weight: 1.29 carat approx; Hardness: 8.5 (Mohs Scale)

Condition Report: Clarity: Si2; Treatment: oil treatment; hand made grinding

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Cat Eye's Orange Sunstone

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Description: Gemstone type: Natural Cat Eye's Sunstone; Colour: orange; Shape: cabochon; Transparency: opaq; Weight: 5.88 carat approx; Hardness: 6.0 - 6.50 (Mohs Scale)

Condition Report: Treatment: None, untreatment; hand made grinding;

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Purple Spinel 1.80 ct

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Description: Gemstone type: Natural Spinel; Colour: purple; Shape: oval facetted; Transparency: transparent; Weight: 1.80 carat approx; Hardness: 8.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Green Emerald 0.90 ct

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Description: Gemstone type: Natural Emerald; Colour: green; Shape: octagon facetted; Transparency: transparent; Weight: 0.90 carat approx; Hardness: 8.5 (Mohs Scale)

Condition Report: Clarity: Si2; Treatment: oil treatment; hand made grinding

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Purplish Red Ruby 0.65 ct

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Description: Gemstone type: Natural Ruby; Colour: purplish red; Shape: pear facetted; Transparency: transparent; Weight: 0.65 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: Si2; Treatment: None, unheated; hand made grinding

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Purple Sapphire 0.62 ct

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Description: Gemstone type: Natural Sapphire; Colour: purple; Shape: pear facetted; Transparency: transparent; Weight: 0.62 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Red Ruby 0.44 ct

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Description: Gemstone type: Natural Ruby; Colour: Red; Shape: oval facetted; Transparency: transparent; Weight: 0.44 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: i1; Treatment: None, unheated; hand made grinding

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Blue Sapphire 1.01 ct

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Description: Gemstone type: Natural Sapphire; Colour: blue; Shape: oval facetted; Transparency: transparent; Weight: 1.01 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Yellow Heliodor 11.53 ct

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Description: Gemstone type: Natural Heliodor; Colour: yellow; Shape: cushion facetted; Transparency: transparent; Weight: 11.53 carat approx; Hardness: 7.5 - 8.0 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: Normal heated; hand made grinding

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Blue Topaz 42.60 ct

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Description: Gemstone type: Natural Topaz; Colour: blue; Shape: cushion facetted; Transparency: transparent; Weight: 42.60 carat approx; Hardness: 8.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: irradiated; hand made grinding

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Blue Sapphire 0.90 ct

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Description: Gemstone type: Natural Sapphire; Colour: blue; Shape: oval facetted; Transparency: transparent; Weight: 0.90 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: Normal heated; hand made grinding

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Green Fluorite 31.93 ct

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Description: Gemstone type: Natural Fluorite; Colour: green; Shape: oval facetted; Transparency: transparent; Weight: 31.93 carat approx; Hardness: 4.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None; hand made grinding

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Purple Amethyst 70.70 ct

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Description: Gemstone type: Natural Amethyst; Colour: purple; Shape: oval facetted; Transparency: transparent; Weight: 70.70 carat approx; Hardness: 7.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None; hand made grinding

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Blue, Green Marine Opal doublet 5.60 ct

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Description: Gemstone type: Natural Opal doublet Colour: blue Marine, green marine Shape: oval Transparency: opaq Measurements: 14.30 x 13.07 x 4.55 approx [mm] Weight: 5.60 carat approx Hardness: 5.5 ' 6.5 (Mohs Scale) Treatment: None Origin: Lighting Ridge Australia

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Green Amethyst 33.90 ct

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Description: Gemstone type: Natural Amethyst; Colour: purple; Shape: oval facetted; Transparency: transparent; Weight: 70.70 carat approx; Hardness: 7.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None; hand made grinding

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Blue Tanzanite 3.09 ct

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Description: Gemstone type: Natural Tanzanite; Colour: blue; Shape: oval facetted; Transparency: transparent; Weight: 5.27 carat approx; Hardness: 6.50 - 7.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Cat Eye's Brown Silimanite 6.01 ct

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Description: Gemstone type: Natural Cat Eye's Silimanite; Colour: brown; Shape: oval cabochon; Transparency: opaq; Weight: 6.01 carat approx; Hardness: 6.0 - 7.5 (Mohs Scale)

Condition Report: Treatment: None; hand made grinding

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Blue Sapphire 1.11 ct

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Description: Gemstone type: Natural Sapphire; Colour: medium blue; Shape: oval facetted; Transparency: transparent; Weight: 1.11 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: Normal heated; hand made grinding

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Violet Spinel 4.60 ct

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Description: Gemstone type: Natural Spinel; Colour: violet; Shape: oval facetted; Transparency: transparent; Weight: 4.60 carat approx; Hardness: 8.0 (Mohs Scale)

Condition Report: Clarity: VVS; Treatment: None, unheated; hand made grinding

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Red Ruby 0.90 ct

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Description: Gemstone type: Natural Ruby; Colour: Red; Shape: pear facetted; Transparency: transparent; Weight: 0.90 carat approx; Hardness: 9.0 (Mohs Scale)

Condition Report: Clarity: Si1; Treatment: None, unheated; hand made grinding

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