In this article
Written by Sameer
Reviewed on
You cannot judge a pearl the way you judge a cut stone. There are no facets, hardness tells you little, and the two qualities that count most, lustre and surface, look different in every light. That is why customers who are perfectly confident buying a yaqoot or a pukhraj often come to us unsure what to do with a single moti.
This guide is written for someone in Pakistan buying a loose pearl, usually for a ring or a pendant. We go through what to look at and in what order, what the seller should be able to tell you, and how to choose well when the pearl is on a phone screen rather than in your palm.
First, what kind of pearl is it?
Every pearl belongs to one of three groups, and the seller should tell you which one before anything else.
- Natural pearls form inside a mollusc with no human involvement. They are rare, and a genuine natural pearl of any size should come with lab evidence.
- Cultured pearls form after a farmer places a bead or a piece of tissue inside the mollusc. The pearl is still real nacre grown by the animal, and nearly every pearl sold today is cultured.
- Imitation pearls are glass, shell or plastic beads with a pearly coating. Whatever the label says, they are costume jewellery.
Cultured pearls are further divided into saltwater and freshwater. Our article on what decides a pearl's price explains how these groups affect value. Here we concentrate on picking a good pearl once you know what you are holding.
Six things to judge, in this order
1. Lustre
Lustre is how sharp and bright the reflected light is, and it comes first. A pearl with high lustre gives back a crisp image of a window or a bulb, almost like a mirror. A low-lustre pearl looks chalky or milky, and the reflection is a blur. Lustre comes from the quality and thickness of the nacre layers, so it also tells you something about how long the pearl will stay beautiful.
If you only have time to compare one thing, make it lustre. A slightly smaller pearl with strong lustre nearly always looks better on the hand than a large, dull one.
2. Surface
Very few pearls are perfectly clean. Look for spots, pits, bumps, wrinkles and small flat patches. On a ring, part of the pearl disappears into the mount, so a mark near the base matters less than one on top. Cracks, chipped nacre, or spots where the nacre has worn through to the bead beneath are serious faults. Ask the seller to turn the pearl slowly on video so you can see all of it.
3. Shape
Round pearls are the most wanted and the hardest to grow, so they cost more. Near-round, button (flat on one side), drop and oval pearls are all attractive and often better value. Baroque pearls, with their irregular shapes, have a following of their own.
For a ring, a button or half-drilled near-round pearl is usually the practical pick: the flatter base sits securely in the mount and the top shows its best face. For a pendant, drop shapes hang nicely.
4. Colour and overtone
Pearls come in white, cream, silver, golden, pinkish and dark shades. On top of the body colour, a good pearl often shows an overtone, a faint second colour like rose or green floating on the surface. There is no single best colour. Pick a shade that suits the wearer's skin and the metal you will use: cool white pearls look fresh in silver or white gold, while cream and golden pearls sit well in yellow gold.
5. Size
Pearls are measured in millimetres across, and traders weigh them too. The traditional unit in the international pearl trade is the grain, a quarter of a carat (0.05 g). In Pakistan loose pearls are usually listed in carats and sometimes in ratti, where the standard gemstone ratti is 0.91 carat. Ask which unit is being used, and if it is ratti, whether it is the standard ratti or the smaller sunari ratti of about 0.61 carat. If two sellers use different units, the carat to ratti converter sorts it out.
Once the other qualities are good, size pushes the price up quickly, because big pearls with fine lustre and clean skin are uncommon.
6. Nacre thickness
In bead-nucleated cultured pearls the nacre is a coat over a shell bead. Thin nacre can look fine at first and then wear through. You cannot measure it at home, but strong lustre and no sign of a "blinking" bead through the surface are good signs. A pearl that looks glassy and dull, or shows a striped bead under bright light, probably has thin nacre.
Treatments worth asking about
Plenty of pearls are treated, and some treatments are routine. The point is that you should be told.
- Bleaching evens out the colour of white pearls. Common and widely accepted.
- Dyeing gives dark, golden or fashion colours. It should be disclosed and priced in. Dye sometimes gathers around the drill hole.
- Coating with lacquer can make a dull pearl look bright for a while, then it wears off in patches.
- Irradiation is used to darken some pearls.
For an important purchase, an independent lab can separate natural from cultured and detect many treatments; ask us if you want this for a pearl from our listings. Our article on real vs fake pearl covers the home checks for imitations in more detail.
A word on origin labels
The pearl trade uses origin names loosely, and some carry old prestige from the days when natural pearls came mostly from the Gulf. Today, for most pearls, only a lab or a solid paper trail can back up an origin. Judge the pearl in front of you on lustre, surface, shape and size. If the price leans on an origin claim, ask what evidence comes with it, and be wary of any claim of natural origin made without testing.
Questions for the seller
- Is the pearl natural, cultured or imitation? Saltwater or freshwater?
- Has it been bleached, dyed, coated or treated in any other way?
- What is its size in millimetres and its weight, and in which unit?
- Is it fully drilled, half-drilled or undrilled?
- Can I see a daylight video of this exact pearl, turned all the way round?
- Can it be sent for independent lab testing?
- Can I inspect it before I pay, and how long do I have to return it?
A seller who answers these clearly is giving you what you need. If they hesitate on the first two, slow down.
Buying a pearl online in Pakistan
Online, you cannot hold the pearl, so photos and video have to do that job for you. Ask for pictures taken in natural daylight by a window, not under shop spotlights, which make lustre look better than it is. A short clip of the pearl rolling or turning shows lustre and surface far better than any still. If you can, compare two pearls in the same video, because differences are easier to see side by side.
Then use delivery to your advantage. With Cash on Delivery you open the parcel and look at the pearl in your own daylight before paying the rider. Rub it very lightly along the edge of a front tooth: real pearls, natural or cultured, usually feel slightly gritty, while most imitations feel smooth. It is a rough check rather than proof, so be gentle.
Two pearls from our current listings show the spread within the category: a 10.00 carat moti and a 12.05 carat moti. Each has its own photos, so you can compare lustre and shape directly. Everything else is in the pearl category.
Setting and wearing a pearl ring
Pearls are soft, about 2.5 to 4.5 on the Mohs scale, and they react to acids, perfume, hairspray and sweat. A ring pearl needs a mount that guards its edges, usually a cup with a peg for a half-drilled pearl, or a bezel. Put the ring on after perfume and creams, and take it off before washing with strong soap, cooking or housework. Wipe it with a soft, slightly damp cloth after wearing, and store it away from harder stones that would scratch it.
For a pearl worn daily, a pendant or earring takes less punishment than a ring. If you want a ring, pick a design that keeps the pearl out of direct knocks. Our stone setting page explains the options, and silver vs gold settings helps you choose the metal.
Moti in tradition
In Vedic astrology pearl is the stone of the Moon (Chandra), and many families pick it for that reason. It is also the traditional June birthstone and is linked with Cancer. These are beliefs and customs, not guarantees, and they do not change how a pearl's quality should be judged. Our guide to pearl benefits goes into the tradition more fully.
Buying from Authentic Gems
We photograph every pearl on its own and tell you what we know about it, treatments included. Orders are confirmed by phone or WhatsApp and dispatched within 1 working day by insured, tracked courier. Here in Karachi, from Clifton and DHA to Gulistan-e-Jauhar, pearls usually arrive in 1 to 2 working days; Lahore, Islamabad, Rawalpindi and other major cities usually take 2 to 4, and smaller towns up to about 7. Delivery is a flat Rs. 500 per order. Pay by Cash on Delivery after inspecting the pearl, and return it within 7 days if it is not right. For help comparing two pearls, message us on WhatsApp. If a pearl is not for you, moonstone is the other June stone and has a similar soft glow.
Shop the stones: pearl.
The beliefs described here are traditions, shared for interest. They are not guaranteed outcomes, religious rulings or medical advice.
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