Results for “Opal Rocks”

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21ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 77YQ: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

1 day Left

21ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 77YQ

Est.

US$10

-

US$200

US$10

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

0.10ct Untreated Natural Fancy Diamond Loose Gemstone, 9BG: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 3.2x1.1mm. Precision f

10 hrs Left

0.10ct Untreated Natural Fancy Diamond Loose Gemstone, 9BG

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

1.38 Carats Natural Mozambique Fancy Tourmaline Loose Gemstone, 55WJ: This natural Mozambique tourmaline holds dimension measurements of 6.1x6x4.3mm, sourced from Mozambique's productive tourmaline mineral deposits that yield highly sought-after natural colored tourmali

1 day Left

1.38 Carats Natural Mozambique Fancy Tourmaline Loose Gemstone, 55WJ

Est.

US$10

-

US$200

US$10

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

111.79ct Natural Baltic Amber Polished Rough Parcel Lot, 39EY: This polished rough parcel consists of free-form baltic amber specimens with warm golden-yellow to honey-orange translucency. Partial high-gloss polished surfaces reveal visible insect debris and orga

10 hrs Left

111.79ct Natural Baltic Amber Polished Rough Parcel Lot, 39EY

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

119.86ct Natural Baltic Amber Polished Rough Parcel Lot, 42EY: This polished rough parcel consists of free-form baltic amber specimens with warm golden-yellow to honey-orange translucency. Partial high-gloss polished surfaces reveal visible insect debris and orga

10 hrs Left

119.86ct Natural Baltic Amber Polished Rough Parcel Lot, 42EY

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

35.08 Carats Natural Brazilian Lemon Quartz Fancy Cut Loose Gemstone, 91WY: This lemon quartz specimen is mined from Brazilian natural quartz deposits and refined via professional fancy cut lapidary work, featuring consistent polished surfaces across the entire crystalline ex

1 day Left

35.08 Carats Natural Brazilian Lemon Quartz Fancy Cut Loose Gemstone, 91WY

Est.

US$15

-

US$200

US$15

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

23.62ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 27YZ: This smoothly polished cabochon of natural phantom quartz preserves delicate layered phantom crystal formations enclosed inside transparent quartz host. The domed polished surface offers unobstructed

1 day Left

23.62ct Natural Brazilian Phantom Quartz Oval Cabochon Loose Gemstone, 27YZ

Est.

US$10

-

US$200

US$10

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

251ct Natural Type A Burmese Jadeite Jade Sliced Rough, 33YR: This specimen is a sliced rough block of natural Type A Burmese jadeite jade. The interior displays natural colour zoning with visible mineral veining and crystalline patterns typical of unprocessed j

1 day Left

251ct Natural Type A Burmese Jadeite Jade Sliced Rough, 33YR

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

32.19 Carats Natural Brazilian Lemon Quartz Fancy Cut Loose Gemstone, 88WY: This lemon quartz specimen is mined from Brazilian natural quartz deposits and refined via professional fancy cut lapidary work, featuring consistent polished surfaces across the entire crystalline ex

1 day Left

32.19 Carats Natural Brazilian Lemon Quartz Fancy Cut Loose Gemstone, 88WY

Est.

US$15

-

US$200

US$15

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

86ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 7YQ: This unpolished mineral rough is natural ruby zoisite sourced from Tanzania, exhibiting distinct banded mineral segregation of vibrant green zoisite, magenta ruby crystals, and dark hornblende inclusi

1 day Left

86ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 7YQ

Est.

US$10

-

US$200

US$10

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

81.15ct Natural Baltic Amber Polished Rough Parcel Lot, 30AJ: This polished rough parcel consists of free-form baltic amber specimens with warm golden-yellow to honey-orange translucency. Partial high-gloss polished surfaces reveal visible insect debris and orga

10 hrs Left

81.15ct Natural Baltic Amber Polished Rough Parcel Lot, 30AJ

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

0.28ct Natural Fancy Diamond Slice, Hand Rose Cut with Pictorial Inclusions Loose Gemstone, 44BG: This unique natural diamond slice features a delicate hand-executed rose cut surface, showcasing captivating pictorial mineral inclusions trapped within the diamond matrix. Measuring 6.5x5x0.7mm, the

10 hrs Left

0.28ct Natural Fancy Diamond Slice, Hand Rose Cut with Pictorial Inclusions Loose Gemstone, 44BG

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

68.32 Ct Natural Dendrite Opal Oval Cab: weight - 68.32 Ct / Dimensions - 51.00 x 35.00 x 6.20 mm / Shape & Cut - Excellent Oval Cab / Origin - Brazil / Comments - None

Buy Now

68.32 Ct Natural Dendrite Opal Oval Cab

US$46

Bangkok, TH

Gems Auction

4.7

(490)

0.31ct Natural Fancy Diamond Slice Hand Rose Cut with Pictorial Inclusions Loose Gemstone, 55BG: This unique natural diamond slice features a delicate hand-executed rose cut surface, showcasing captivating pictorial mineral inclusions trapped within the diamond matrix. Measuring 6.5x5.9x0.6mm, th

10 hrs Left

0.31ct Natural Fancy Diamond Slice Hand Rose Cut with Pictorial Inclusions Loose Gemstone, 55BG

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

53ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 22YQ: This unpolished mineral rough is natural ruby zoisite sourced from Tanzania, exhibiting distinct banded mineral segregation of vibrant green zoisite, magenta ruby crystals, and dark hornblende inclusi

1 day Left

53ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 22YQ

Est.

US$10

-

US$200

US$10

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

0.37ct Natural Fancy Diamond Slice Hand Rose Cut with Pictorial Inclusions Loose Gemstone, 61BG: This unique natural diamond slice features a delicate hand-executed rose cut surface, showcasing captivating pictorial mineral inclusions trapped within the diamond matrix. Measuring 6.9x5.3x0.8mm, th

10 hrs Left

0.37ct Natural Fancy Diamond Slice Hand Rose Cut with Pictorial Inclusions Loose Gemstone, 61BG

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

HERKIMER DIAMOND ROCK STONE LAPIDARY SPECIMEN: Discover an extraordinary collection of natural wonders and estate treasures in Hatman's Auctions' Treasures of the Earth Online Auction! Browse turquoise, agate, jasper, petrified wood, quartz crysta

14 hrs Left

HERKIMER DIAMOND ROCK STONE LAPIDARY SPECIMEN

Est.

US$35

-

US$10,000

US$35

Thayer, MO

Col. Christie Hatman Auctioneers

4.4

(553)

86ct Natural Peruvian Chrysocolla Polished Slab Rough, 61WV: This partial-polished chrysocolla slab features blended mineral matrix with smooth refined face and unaltered natural rugged edge across its 35x30x9mm elongated form, translucent mineral layers hold s

1 day Left

86ct Natural Peruvian Chrysocolla Polished Slab Rough, 61WV

Est.

US$10

-

US$200

US$10

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

34.38 Ct Natural Green Opal Round Cab: weight - 34.38 Ct / Size - 31.00 x 31.00 x 5.80 mm / Shape - Excellent Round Cab / Origin - Brazil / Treatment - None

3 days Left

34.38 Ct Natural Green Opal Round Cab

Est.

US$100

-

US$200

US$1

Bangkok, TH

Gems Auction

4.7

(490)

2.20 Ct Natural Multicolor Welo Opal Top Fire Drilled Solid Rough: Weight - 2.20 Ct / Size - 14.70 x 10.60 x 6.40 mm / Shape - Solid Rough Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

Oct 2, 2026

2.20 Ct Natural Multicolor Welo Opal Top Fire Drilled Solid Rough

Est.

US$75

-

US$150

US$1

Bangkok, TH

Gems Auction

4.7

(490)

285ct Natural Type A Burmese Jadeite Jade Sliced Rough, 14YR: This specimen is a sliced rough block of natural Type A Burmese jadeite jade. The interior displays natural colour zoning with visible mineral veining and crystalline patterns typical of unprocessed j

1 day Left

285ct Natural Type A Burmese Jadeite Jade Sliced Rough, 14YR

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

0.14ct Untreated Natural Fancy Diamond Loose Gemstone, 10BG: This fully polished untreated natural fancy diamond features inherent internal mineral markings characteristic of natural diamond formation, measured at calibrated dimensions of 4.5x2.9x1.8mm. Precisi

10 hrs Left

0.14ct Untreated Natural Fancy Diamond Loose Gemstone, 10BG

Est.

US$25

-

US$200

US$25

Sathorn, Bangkok

ThousandPlanet

4.5

(314)

ORTHOCERAS ROCK STONE LAPIDARY SPECIMEN: Discover an extraordinary collection of natural wonders and estate treasures in Hatman's Auctions' Treasures of the Earth Online Auction! Browse turquoise, agate, jasper, petrified wood, quartz crysta

14 hrs Left

ORTHOCERAS ROCK STONE LAPIDARY SPECIMEN

Est.

US$40

-

US$10,000

US$40

Thayer, MO

Col. Christie Hatman Auctioneers

4.4

(553)

7.77 Carats Natural Brazilian Green Topaz Faceted Loose Gemstone, 95TM: This natural topaz originates from Brazilian mineral formations and undergoes professional faceted lapidary finishing with uniform high-gloss polishing across all outer crystal facets. Natural fine in

1 day Left

7.77 Carats Natural Brazilian Green Topaz Faceted Loose Gemstone, 95TM

Est.

US$15

-

US$200

US$15

Sathorn, Bangkok

Lazo Heritage

4.4

(24)

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