Ceylon White Sapphires
Corundum that grew without the trace elements that colour the rest of the family. A soft silvery light rather than diamond fire. Unheated, cut in Ratnapura, reported.
Available Ceylon White Sapphires Gemstones
2 stones
Other Ceylon Gemstones
Natural
Natural Ceylon Blue Sapphire Oval Mixed Cut
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Natural
Natural Ceylon Vivid Blue Sapphire Round
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Natural
Natural Ceylon Blue Sapphire Mixed Oval
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Natural
Natural Ceylon Vivid Yellow Sapphire
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Natural
Natural Ceylon Vivid Blue Sapphire Mixed Cut
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Certified
Parti sapphire, elongated octagon
US$ 3,150
Certified
Ceylon royal blue sapphire, cushion
US$ 8,900
Certified
Vivid blue sapphire, cushion
US$ 6,400
It will not sparkle like a diamond and we are not going to pretend otherwise
Almost everything written about a Ceylon white sapphire sells it as a diamond alternative. It is not one. A buyer who arrives expecting diamond fire will be disappointed on the day the ring goes on. Better to hear that from us now than to learn it later.
The reason is physics rather than quality. Brilliance and fire come from two properties, refractive index and dispersion. Colourless corundum sits well down both scales. Where a diamond bends light at 2.42 and splits it at 0.044, white sapphire manages roughly 1.77 and 0.018. Moissanite goes further than either, throwing more rainbow than a diamond does.
| White sapphire | Diamond | Moissanite | |
|---|---|---|---|
| Refractive index | 1.77 | 2.42 | 2.65 to 2.69 |
| Dispersion, the fire | 0.018 | 0.044 | 0.104 |
| Mohs hardness | 9 | 10 | 9.25 |
| How it reads | Soft silvery white, quiet | Sharp white with rainbow flash | More rainbow than diamond |
| Natural or grown | Natural corundum | Either | Grown |
If what you want is the look of a diamond, buy a lab diamond or a moissanite and spend the difference on the setting. We would rather say that than take the order.
The maintenance nobody mentions until afterwards
This is the complaint that shows up in every honest review and it follows directly from the numbers above. A diamond has enough brilliance to sparkle through a film of hand cream and soap scum. A white sapphire does not. Let one get dirty and it goes flat and slightly milky. The owner concludes the stone has clouded over when it has simply stopped being clean.
It has not changed. Warm soapy water and a soft brush brings it straight back. But you will be doing that every week or two rather than every few months. Over many years the facet edges can soften with wear, which dulls it further. Anyone who cannot see themselves keeping up with that should buy something else. We will say so on a call.
What a white sapphire is actually good at
Quiet. That is the honest answer and for a certain buyer it is the whole appeal. A white sapphire gives a soft silvery light instead of a rainbow. It reads as an old stone rather than a new one, which is why it suits antique settings, low profile bands and anyone who dislikes being flashed at from across a table.
It is also natural corundum at nine on the Mohs scale, with no cleavage plane to split along, untreated in the case of the round brilliant we have listed. That combination is unusual. Most things at this price are either grown in a factory or too soft for a ring worn daily. If you want a mined stone with real hardness and no interest in shouting, there is very little else in the running.
A Ceylon white sapphire is corundum with nothing in it
Every other colour we sell is a story about a trace element. Iron and titanium make blue. Chromium makes pink and red. Iron alone makes yellow and green. A white sapphire is the one that got none of them, which is why it is the only sapphire defined by an absence rather than a presence.
That purity is also why colourless material is often heated, to drive out the last of a residual tint. Ours is not. The report says so and the number sits on the listing where you can check it. Sri Lanka has produced fine colourless corundum for as long as it has produced blue, out of the same Ratnapura gravels and sorted from the same washing baskets.
What it costs and who should buy it
A Ceylon white sapphire is inexpensive by sapphire standards. Commercial goods run a couple of hundred dollars a carat, while certified stones with real transparency and a clean cut sit higher. Ours is a two carat round brilliant at a little over six hundred a carat, which is the cheapest per carat stone we list.
Questions
Asked before you buy
If a question about white sapphire is not answered here, write to Colombo and a gemmologist replies, not a template.