Loose black opal

LOOSE BLACK OPAL cut as an oval cabochon, of 3.79 carats.

Loose black opal with bright blue-green play of colours, approx. 1.86 ct

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Highlight: Timed Auction, NO COMPETING BID, NO HIDDEN RESERVED PRICE, all auction lots starting at only $19 for all SOLID Australian Opals and rough parcel which is few hundreds dollar worth in the ac

Item: 3.27 Ct Genuine Ethiopian Loose Unheated Black Opal Loose Gemstone: Natural Black Opal Stone Clarity: Translucent Carat Weight: 3.27 Size: 12.00 x 10.00 x 6.20 mm Oval cobochon / Multi-Color Top

Item: Australian Black Opal - Lightning Ridge Loose Gemstone: Black Opal Carat Weight: 1.2 Size/Dimensions: 10 mm x 6 mm x 3.8 mm Shape: Freeform  / Origin: Lighting Ridge, Australia / Treatment: No

Loose 2.39ct oval cabochon cut black opal displaying green fire. Measures 14.5x9.55x3.44mm. TH-231

Five various sizes of loose black and boulder opals in different shapes The Estate of Edyth Schoenrich, Baltimore, MD.

Ref:602003 Main Gemstone:Opal Number of stones:1 Shape:Oval Carat Weight:34.1ct Color:Black Treatment:Natural Measure:Approx18.5*30.6*13mm

Ref:230716120 Gold Content:14K Gold Main Gemstone:Opal Number of stones:1 Shape:Pear Carat Weight:8.36ct Color:Black Treatment:Natural Cut Grade:G

Ref:602149 Main Gemstone:Opal Number of stones:1 Shape:Oval Carat Weight:8.7ct Color:Black Treatment:Natural Measure:Approx11.8*15.5*9.5mm

Ref:602469 Main Gemstone:Opal Number of stones:1 Shape:Pear Carat Weight:4.4ct Color:Black Treatment:Natural Measure:Approx11.1*16.2*5.4mm

Item: Natural Black Loose Opal Weight 3.98 ct Size: 14.15 x 11.65 x 4.61 mm Treatment: None Cut: Cabochon oval Origin: Ethiopia Welo Clarity: Transparent Please note that this lot has a reserve. When

Thousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, Mi

3.15 cts Natural Ethiopian Black Opal Round Shape Please note that this lot has a confidential reserve. When you leave a bid in advance of the auction, submit your maximum. The bidder who has submitte

Weight - 3.19 Ct / Size - 14.50 x 9.30 x 5.50 mm / 1 P'cs / Shape - Pear Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - Heated

Weight - 2.64 Ct / Size - 13.20 x 9.60 x 4.50 mm / Shape - Oval Cabochon / Color - Black / Clarity - Translucent / Origin - Ethiopia / Treatment - Heated

Title: 6.15 Ct Stunning Pear cut ! Multi color Flashing Black Opal Loose Gemstone Carat Weights: 6.15 Size/Dimensions: 18.80x10.80x6.50 MM Additional Info: HEATED WITH PLAY OF COLOR Reserve: $50.00 Sh

Item: Australian Lighting Ridge Black Opal Loose Gemstone: Opal Carat Weight: 3.08 Dimensions: 15.5 mm x 12.5 mm x 3.5 mm Shape: Triangle Shipping: Domestic: Flat-rate of $4.00 to anywhere within the