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Results for “Untreated Sapphire”

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*14.86Ct Unheated Welo Opal Polished - Ethiopian Opal, 1250B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 14.86Ct Dimension: 29x18.8x5.5 mm Treatment: Natural Untreated Type: Cabochon,

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*14.86Ct Unheated Welo Opal Polished - Ethiopian Opal, 1250B

Ksmith Heritage Auctioneers

Est. $1,450-$2,900

*23.48Ct Welo Opal Polished - Ethiopian Opal , 478E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 23.48Ct Dimension: 28x21.5x8.5 mm Treatment: Natural Untreated Type: Caboch

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*23.48Ct Welo Opal Polished - Ethiopian Opal , 478E

Ksmith Heritage Auctioneers

Est. $670-$1,340

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1.72g Natural Opal Stone Sterling Silver 925 Necklace (Pendant with Chain) , 339E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Opal Necklace Origin: Ethiopia Pendant Dimension : 18x6mm (included clasp) Stone Dimension: 11x8mm Treatment: Natural Untrea

2026

1.72g Natural Opal Stone Sterling Silver 925 Necklace (Pendant with Chain) , 339E

Ksmith Heritage Auctioneers

16.13 ct. Greenish Red Tourmaline Carving - BRAZIL Untreated: 16.13 ct. Greenish Red Tourmaline Carving - BRAZIL Untreated 100% Natural Cut - Carving Color - Greenish Red Clarity - SI Transparency - Transparent Ct. Weight - 16.13 ct.

Apr 09, 2026

16.13 ct. Greenish Red Tourmaline Carving - BRAZIL Untreated

Kissing Auction

Est. $4,000-$6,000

*1.98Ct Boulder Opal - Australian Opal , 498E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 1.98Ct Dimension: 11.1x8.3x3.4 mm Treatment: Natural Untreated Type: Cabochon, Po

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*1.98Ct Boulder Opal - Australian Opal , 498E

Ksmith Heritage Auctioneers

Est. $150-$300

7.88ct Oval Cut Light Grey Star Sapphire Cabochon: 7.88ct Oval Cut Light Grey Star Sapphire Cabochon Specifications: Type: Star Sapphire Weight: 7.88 ct 1 gem Size:10.6 x 10.2 x 6.9 mm Shape: Oval Cabochon Color: Light Gr

Apr 14, 2026

7.88ct Oval Cut Light Grey Star Sapphire Cabochon

Weatherham Estate Treasures

Est. $400-$450

*10.27Ct Welo Opal Polished - Ethiopian Opal , 385E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 10.27Ct Dimension: 22.4x14.2x6.8 mm Treatment: Natural Untreated Type: Cabo

2026

*10.27Ct Welo Opal Polished - Ethiopian Opal , 385E

Ksmith Heritage Auctioneers

Four 0.47ct Oval Cut Bright Yellow Ceylon Sapphire Gemstones: Four 0.47ct Oval Cut Bright Yellow Ceylon Sapphire Gemstones Meticulously sourced from the gem-rich mines of Sri Lanka, these gemstones are a testament to the timeless allure of sapphires. Symbolizin

Apr 15, 2026

Four 0.47ct Oval Cut Bright Yellow Ceylon Sapphire Gemstones

Weatherham Estate Treasures

Est. $500-$650

*24.06Ct Welo Opal Polished - Ethiopian Opal , 528E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 24.06Ct Dimension: 21.3x21x11.4 mm Treatment: Natural Untreated Type: Caboc

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*24.06Ct Welo Opal Polished - Ethiopian Opal , 528E

Ksmith Heritage Auctioneers

Est. $670-$1,340

*22.76Ct Welo Opal Polished - Ethiopian Opal , 396E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 22.76Ct Dimension: 21.8x17.5x11.6 mm Treatment: Natural Untreated Type: Cab

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*22.76Ct Welo Opal Polished - Ethiopian Opal , 396E

Ksmith Heritage Auctioneers

Est. $590-$1,180

0.36Ct 1.2mm D-F Brilliant Round VS Loose Diamond 40pcs - Australian Diamond, 1180B: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

6 days Left

0.36Ct 1.2mm D-F Brilliant Round VS Loose Diamond 40pcs - Australian Diamond, 1180B

Ksmith Heritage Auctioneers

Est. $560-$1,120

*30Ct Boulder Opal - Australian Opal , 494E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 30Ct Dimension: 28.5x28.4x4.5 mm Treatment: Natural Untreated Type: Cabochon, Pol

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*30Ct Boulder Opal - Australian Opal , 494E

Ksmith Heritage Auctioneers

Est. $370-$740

*11.22Ct Welo Opal Polished - Ethiopian Opal, 1145B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 11.22Ct Dimension: 21.7x14.8x6.9 mm Treatment: Natural Untreated Type: Cabochon,

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*11.22Ct Welo Opal Polished - Ethiopian Opal, 1145B

Ksmith Heritage Auctioneers

Est. $230-$460

*14.96Ct Welo Opal Polished - Ethiopian Opal, 1179B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 14.96Ct Dimension: 23.9x16.9x7.6 mm Treatment: Natural Untreated Type: Cabochon,

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*14.96Ct Welo Opal Polished - Ethiopian Opal, 1179B

Ksmith Heritage Auctioneers

Est. $290-$580

4.75Ct Boulder Opal - Australian Opal , 264E: Ksmith Heritage Auctioneers Subject: Natural Boulder Opal Origin: Australia Carat Weight: 4.75Ct Dimension: 10.5x9.4x5.9 mm Treatment: Natural Untreated Type: Cabochon, Po

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4.75Ct Boulder Opal - Australian Opal , 264E

Ksmith Heritage Auctioneers

Est. $170-$340

*9.04Ct Welo Opal Polished - Ethiopian Opal , 375E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 9.04Ct Dimension: 20.8x12.2x6.8 mm Treatment: Natural Untreated Type: Caboc

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*9.04Ct Welo Opal Polished - Ethiopian Opal , 375E

Ksmith Heritage Auctioneers

Est. $190-$380

*10.87Ct Welo Opal Polished - Ethiopian Opal, 1128B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 10.87Ct Dimension: 17.7x15x8.6 mm Treatment: Natural Untreated Type: Cabochon, P

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*10.87Ct Welo Opal Polished - Ethiopian Opal, 1128B

Ksmith Heritage Auctioneers

Est. $210-$420

0.36Ct 1.2mm D-F Brilliant Round VS Loose Diamond 40pcs - Australian Diamond - Round Shape Lot, 229A: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

6 days Left

0.36Ct 1.2mm D-F Brilliant Round VS Loose Diamond 40pcs - Australian Diamond - Round Shape Lot, 229A

Ksmith Heritage Auctioneers

Est. $560-$1,120

*14.14Ct Welo Opal Polished - Ethiopian Opal , 278E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 14.14Ct Dimension: 19.5x15.1x10.1 mm Treatment: Natural Untreated Type: Cab

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*14.14Ct Welo Opal Polished - Ethiopian Opal , 278E

Ksmith Heritage Auctioneers

Est. $290-$580

*5.62Ct Welo Opal Polished - Ethiopian Opal, 1034B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 5.62Ct Dimension: 14.7x13.3x6.5 mm Treatment: Natural Untreated Type: Cabochon,

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*5.62Ct Welo Opal Polished - Ethiopian Opal, 1034B

Ksmith Heritage Auctioneers

Est. $170-$340

*11.55Ct Welo Opal Polished - Ethiopian Opal , 485E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 11.55Ct Dimension: 20.4x13x9 mm Treatment: Natural Untreated Type: Cabochon

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*11.55Ct Welo Opal Polished - Ethiopian Opal , 485E

Ksmith Heritage Auctioneers

Est. $270-$540

18.81Ct Faceted Crystal Opal Polished - Ethiopian Opal , 336E: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Crystal Opal Origin: Ethiopia Carat Weight: 18.81Ct Dimension: 21.5x18.3x10.7 mm Treatment: Natural Untreated Type:

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18.81Ct Faceted Crystal Opal Polished - Ethiopian Opal , 336E

Ksmith Heritage Auctioneers

Est. $590-$1,180

*11.35Ct Welo Opal Polished - Ethiopian Opal, 1169B: Ksmith Heritage Auctioneers Subject: Natural Ethiopian Welo Opal Origin: Ethiopia Carat Weight: 11.35Ct Dimension: 21.2x14x7.8 mm Treatment: Natural Untreated Type: Cabochon, P

2026

*11.35Ct Welo Opal Polished - Ethiopian Opal, 1169B

Ksmith Heritage Auctioneers

0.125Ct 1.4mm D-F Brilliant Round VS Loose Diamond 10pcs - Australian Diamond, 1159B: Ksmith Jewels Global Welcome to our auction house, today auction brought to you by Ksmith Jewels Global based in Penang, Malaysia specialize in all kinds of opal and color gemstone both in manufacturi

6 days Left

0.125Ct 1.4mm D-F Brilliant Round VS Loose Diamond 10pcs - Australian Diamond, 1159B

Ksmith Heritage Auctioneers

Est. $200-$400

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