Grey Gemstones

Orange, Grey Opal - 39.33 ct - International Gemological Institute (IGI) - Fine Play Of Colours

Current bid

€140

Grey, Multicolour Opal - 20.67 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Starting bid

€1

1 pcs Grey Opal - 8.92 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Starting bid

€1

1 pcs Grey, Orange, Yellow, Green, Black Opal - 11.95 ct - International Colored Gemstone Association (ICA GemLab)

Starting bid

€1

1 pcs Grey, Yellow Alexandrite - 1.14 ct - International Gemological Institute (IGI)

Starting bid

€1

1 pcs Blue, Grey Star Sapphire - 17.79 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Starting bid

€1

No reserve price Purple, Pink, Grey Spinel - 2.50 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Starting bid

€1

1 pcs Multicolour, Orange, Grey Opal - 37.96 ct - International Gemological Institute (IGI) - Rare ! Snake Skin Pattern

Starting bid

€1

Grey Opal - 16.24 ct - International Colored Gemstone Association (ICA GemLab)

Starting bid

€1

Grey Opal - 23.52 ct - International Colored Gemstone Association (ICA GemLab) - Fine Rare Top Pattern

Starting bid

€1

No reserve price Grey Opal - 26.92 ct - Instituto Gemólogico Español (IGE) - Intense Color Play

Starting bid

€1

No reserve price - 1 pcs Orange, Grey Opal - 20.12 ct - International Gemological Institute (IGI) - NATURAL OPAL

Current bid

€280

No reserve price Grey Opal - 32.98 ct - Instituto Gemólogico Español (IGE) - Intense Color Play

Current bid

€1

1 pcs Multicolour, Orange, Grey, Green Opal - 13.32 ct - International Gemological Institute (IGI) - Neon Patch Work Pattern

Current bid

€1

No reserve price Blue, Grey Aquamarine - 8.74 ct - Instituto Gemólogico Español (IGE)

Current bid

€1

3 pcs Grey Spinel - 3.83 ct - Instituto Gemólogico Español (IGE) - Untreated

Current bid

€120

Grey Opal - 20.81 ct - International Colored Gemstone Association (ICA GemLab) - Top Rainbow Colors

Starting bid

€1

Multicolour, White, Grey Opal - 30.87 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

Current bid

€6

Grey Opal - 17.79 ct - International Gemological Institute (IGI) - Fine Play Of Colours

Starting bid

€1

1 pcs Pink, Grey Spinel - 2.09 ct - Instituto Gemólogico Español (IGE)

Starting bid

€1

1 pcs Multicolour, Grey, Red, Green Opal - 15.57 ct - International Gemological Institute (IGI) - Rare ! Honey Comb Pattern

Starting bid

€1