Opal Gems

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LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures: LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures 4mm If you purchase 2 and want matching pair please let me know, (obviously colors won't match exact

5 days Left

LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures

Est. $104-$128

LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures: LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures 4mm If you purchase 2 and want matching pair please let me know, (obviously colors won't match exact

Mar 05, 2026

LOOSE NATURAL UNTREATED ROUND CUT CABOCHON OPAL Sale is for 1 round cut cabochon opal Opal measures

Est. $104-$128

19.85ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL: 19.85ct NATURAL AUSTRALIAN BOULDER OPAL Natural Untreated boulder opal from Australia19.85ct Measures 23.2mm x 13.1mm Polished rectangular shape cabochon, beautiful veins with color play

5 days Left

19.85ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Est. $343-$481

19.85ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL: 19.85ct NATURAL AUSTRALIAN BOULDER OPAL Natural Untreated boulder opal from Australia19.85ct Measures 23.2mm x 13.1mm Polished rectangular shape cabochon, beautiful veins with color play

Mar 01, 2026

19.85ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Est. $343-$481

3.74ct LOOSE OVAL CABOCHON NATURAL WHITE OPAL 13x11mm: 3.74ct NATURAL WHITE OPAL Natural Untreated white opal 3.74ct Measures 14mm x 11mm x 4.2mm Nice colors, doesn't show well in pictures

Mar 19, 2026

3.74ct LOOSE OVAL CABOCHON NATURAL WHITE OPAL 13x11mm

Est. $113-$139

3.74ct LOOSE OVAL CABOCHON NATURAL WHITE OPAL 13x11mm: 3.74ct NATURAL WHITE OPAL Natural Untreated white opal 3.74ct Measures 14mm x 11mm x 4.2mm Nice colors, doesn't show well in pictures

Feb 12, 2026

3.74ct LOOSE OVAL CABOCHON NATURAL WHITE OPAL 13x11mm

Est. $113-$139

13.47ct Soul Prism Natural Multicolour Boulder Opal: 13.47ct Soul Prism Natural Multicolour Boulder Opal Embrace the cosmic dance of color and energy with this 13.47ct Natural Multicolour Boulder Opal, a powerful stone believed to awaken creativity, in

Feb 18, 2026

13.47ct Soul Prism Natural Multicolour Boulder Opal

Weatherham Estate Treasures

Est. $350-$500

12.30ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL: 12.30ct NATURAL AUSTRALIAN BOULDER OPAL Natural Untreated boulder opal from Koroit Australia12.30ct Measures 24.45mm x 12.71mm x 4.78mm Polished cabochon

5 days Left

12.30ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Est. $206-$343

12.30ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL: 12.30ct NATURAL AUSTRALIAN BOULDER OPAL Natural Untreated boulder opal from Koroit Australia12.30ct Measures 24.45mm x 12.71mm x 4.78mm Polished cabochon

Mar 01, 2026

12.30ct LOOSE CABOCHON NATURAL AUSTRALIAN BOULDER OPAL

Est. $206-$343

23.41 Ct Natural Owyhee Blue Opal Oval Cab: Weight - 23.41 Ct / Dimensions - 30.00 x 20.50 x 5.80 mm / Shape - Oval Cab / Clarity - Translucent / Origin - USA / Treatment - None

Feb 09, 2026

23.41 Ct Natural Owyhee Blue Opal Oval Cab

Est. $75-$150

1.036 Round Cut Opal Gemstone: 1.036 Round Cut Opal Gemstone Size: 7mm x 7mm Total Carat Weight: 1.036ct Untreated View Photos For Further Details

Feb 18, 2026

1.036 Round Cut Opal Gemstone

Weatherham Estate Treasures

Est. $80-$120

9.91 Ct Natural Multicolor Top Fire Opal Solid Rough Cab Set: Weight - 9.91 Ct / Size -12.0x7.5 - 13.0 9.5 mm / 3 Pc's / Shape - Unshaped Solid Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

Feb 11, 2026

9.91 Ct Natural Multicolor Top Fire Opal Solid Rough Cab Set

Est. $125-$250

27.97 Ct Natural Owyhee Blue Opal Oval Cab: Weight - 27.97 Ct / Dimensions - 35.00 x 20.60 x 6.10 mm / Shape - Oval Cab / Clarity - Translucent / Origin - USA / Treatment - None

Feb 09, 2026

27.97 Ct Natural Owyhee Blue Opal Oval Cab

Est. $75-$150

8.00 Ct Natural Dendrite Opal Round Beads: weight - 8.00 Ct / Dimensions - 6.00 - 6.80 mm / 10 Pc's / Shape & Cut - Excellent Round Beads / Origin - Brazil / Comments - None

Feb 16, 2026

8.00 Ct Natural Dendrite Opal Round Beads

Est. $75-$150

9.23 Ct Natural Dendrite Opal Round Beads: weight - 9.23 Ct / Dimensions - 6.10 - 6.40 mm / 10 Pc's / Shape & Cut - Excellent Round Beads / Origin - Brazil / Comments - None

Feb 09, 2026

9.23 Ct Natural Dendrite Opal Round Beads

Est. $75-$150

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Opal Gems

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