By the Real Gems team · Updated 10 October 2026
Ask for Pukhraj and you may be shown a yellow sapphire, a yellow topaz or a citrine. All three are natural, all three can be lovely, and they are entirely different minerals. In traditional usage, and in astrological recommendations, Pukhraj usually means yellow sapphire. Yet the other two are often sold under the same name, sometimes innocently and sometimes not.
The three stones
Yellow sapphire
Yellow sapphire is corundum, the same mineral as Neelam and Yaqoot. Its colour comes mainly from iron. It is hardness 9, very durable, and comes in shades from pale lemon to rich golden yellow. Sri Lanka is the best known source, and Madagascar, Thailand and East Africa also produce it.
Many yellow sapphires are heated to brighten or even out colour. That is a normal, stable treatment. Beryllium diffusion, a deeper treatment that can create strong yellow and orange colour, also exists and should always be disclosed. See our yellow sapphire collection.
Yellow topaz
Topaz is an aluminium silicate with fluorine, hardness 8. Natural yellow to golden topaz exists, and the warm orange-gold variety is called imperial topaz. Pakistan is itself a source of fine pink and golden topaz. Topaz has one direction of perfect cleavage, so a hard knock at the wrong angle can split it. See topaz.
Citrine (Sunela)
Citrine is yellow quartz, hardness 7. Natural citrine is fairly uncommon. Most citrine on the market is amethyst that has been heated, which produces yellow, orange and brownish shades. It is the most affordable of the three, available in large, clean sizes. See citrine.
How to tell them apart
Certain identification needs a lab, but several clues help.
| Yellow sapphire | Yellow topaz | Citrine | |
|---|---|---|---|
| Mineral | Corundum | Topaz | Quartz |
| Hardness | 9 | 8 | 7 |
| Density (SG) | about 4.00 | about 3.53 | about 2.65 |
| Refractive index | 1.76 to 1.77 | 1.61 to 1.63 | 1.54 to 1.55 |
| Typical inclusions | Silk, colour zoning, crystals | Often very clean, liquid inclusions | Often clean, sometimes colour banding |
Weight for size
Density is the most useful clue for a buyer. A yellow sapphire is about one and a half times as heavy as a citrine of the same size. So a 5 ct sapphire looks noticeably smaller than a 5 ct citrine. If a "Pukhraj" looks surprisingly large for its weight, it may well be citrine or topaz.
Brilliance and sparkle
Sapphire has a higher refractive index, so a well cut stone looks brighter and livelier. Citrine tends to look softer and more glassy. This is a hint, not proof. Cutting quality changes everything.
Colour
Citrine often leans orange or brownish, especially heated material, and can show uneven colour. Yellow sapphire tends to a cleaner canary or golden yellow. Topaz sits in between and is often very clean. Again, there is overlap.
Inclusions
Under a 10x loupe, sapphire often shows fine silk needles or straight colour bands. Quartz and topaz are often cleaner. Glass imitations show round bubbles.
Price differences
Prices change with colour, size and clarity, so these are general patterns, not quotes.
- Yellow sapphire is by far the most expensive per carat of the three, and prices rise sharply above about 3 ct for good colour.
- Yellow topaz sits in the middle. Fine imperial topaz can be costly, but ordinary yellow topaz is moderately priced.
- Citrine is the most affordable. Even large, clean stones cost a small fraction of a sapphire of similar size.
That gap is exactly why the confusion matters. If you are paying sapphire prices, you should be getting sapphire. Our price list shows the range for each, and our pricing guide explains why.
Tradition
In South Asian tradition Pukhraj is associated with Jupiter, known as Brihaspati or Mushtari, and astrologers who recommend it usually mean yellow sapphire. Some suggest topaz or citrine as alternatives when budget is limited. These are matters of tradition and personal belief, and we make no claims about effects. If your advisor named a specific stone, buy that stone, clearly identified.
How we list them
On Real Gems, the gem type is always stated plainly. A stone in our yellow sapphire collection is corundum. Topaz and citrine are listed under their own names, even if you know them as Pukhraj. Weights are given in carats and ratti; our ratti guide helps with conversions. And as with all our stones, if any lab finds a stone is not the natural gem we described, we refund in full including delivery.
If you like warm yellow but want an everyday stone with a softer look, yellow agate is another option at a modest price.
Quick questions
Which stone is the real Pukhraj?+
In traditional and astrological usage, Pukhraj means yellow sapphire, a corundum of hardness 9. Yellow topaz and citrine are often sold under the same name in markets. They are natural gems too, but different minerals with much lower prices.
How can I tell yellow sapphire from citrine without a lab?+
Compare size with weight. Sapphire is about one and a half times as dense as citrine, so a sapphire looks smaller for the same carat weight. Sapphire also tends to look brighter. Only a lab can confirm it with certainty.
Is heated yellow sapphire acceptable?+
Yes. Heating is a common, stable treatment that brightens colour and is widely accepted. It should be disclosed. Beryllium diffusion is a different, deeper treatment that also creates yellow and orange colour, and it should always be named by the seller.