These stones are various shades of pink, chosen by shining a blacklight on a larger batch of sapphires and selecting those that glowed and appeared pink. The photos tell the story—some are quite pale, and about half would be considered pink by anyone. One stone stands out, red like a ruby. If it truly is a ruby, it would be the first we’ve encountered from Montana. This particular gem weighs 0.4 carats and measures between 3.5mm and 4.5mm depending on the side. In hand, it appears half red and half pink. While Montana produces many garnets, they don’t glow red or pink under blacklight, whereas pink sapphires and rubies do. Altogether, this lot contains just over 10 carats of rough pink Montana sapphires, most around 3mm in size. None have been heat-treated or altered beyond cutting and polishing—the rough stones remain exactly as they came from the ground.
These stones are various shades of pink, chosen by shining a blacklight on a larger batch of sapphires and selecting those that glowed and appeared pink. The photos tell the story—some are quite pale, and about half would be considered pink by anyone. One stone stands out, red like a ruby. If it truly is a ruby, it would be the first we’ve encountered from Montana. This particular gem weighs 0.4 carats and measures between 3.5mm and 4.5mm depending on the side. In hand, it appears half red and half pink. While Montana produces many garnets, they don’t glow red or pink under blacklight, whereas pink sapphires and rubies do. Altogether, this lot contains just over 10 carats of rough pink Montana sapphires, most around 3mm in size. None have been heat-treated or altered beyond cutting and polishing—the rough stones remain exactly as they came from the ground.