Precious Gemstones
Ruby, sapphire, emerald and topaz, the classic gems of fine jewelry, as natural loose stones. Each one is photographed as it is and listed with its exact weight and size. Pick a stone below to browse its collection.
- Natural stones only
- Ships from the EU
- Photos of the exact stone
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What makes a gemstone "precious"
The term comes from the nineteenth-century jewelry trade, not from mineralogy. The group has never had one fixed list. The narrowest version names the big four: diamond, ruby, sapphire and emerald. Broader definitions add other stones, topaz among them: the U.S. Geological Survey's guide to gemstones classes diamond, ruby, sapphire, beryl, topaz and opal as precious, as stones that combine beauty, durability and rarity. In practice the label says less than the stone itself, so every listing describes color, clarity and treatment plainly, whichever group the stone belongs to.
How to choose a precious gemstone
Color comes first. For ruby, sapphire and emerald, color has the strongest influence on value: an even, saturated color is valued above one that is very dark or very pale. Our photos show each stone as it is, so compare the photos rather than the names.
Clarity depends on the species. Sapphire and topaz are often clean to the eye. Ruby commonly shows fine silk and small crystals, and emerald almost always has visible inclusions. These are natural features of each species, and every listing describes them.
Treatment affects price more than looks. Heated corundum and oiled emerald are standard in the trade, and an untreated stone of similar appearance costs more. Emerald oil can slowly dry out over the years and can be renewed by a jeweler. Each listing states what has been done to the stone.
Match the size to the setting. Every listing gives exact millimeter dimensions. Calibrated sizes such as 4mm rounds or 6x4mm ovals fit ready-made settings, while larger or less usual sizes suit custom work.
Think about how it will be worn. Ruby and sapphire are tough enough for everyday rings. Emerald and topaz are happier in pendants, earrings or protective ring settings: emerald because of its inclusions, topaz because a sharp knock can split it along its cleavage.
Have a question about a particular stone, its color in daylight or its fit for a setting? Ask us before you order. Contact us
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