The core difference between kacchi ratti and pakki ratti is weight: 1 kacchi ratti equals 120 milligrams and is mostly used in Punjab and Haryana, while 1 pakki ratti equals 180 milligrams and is the standard unit used across the rest of India. If your gemstone dealer or astrologer doesn't specify which one they mean, you could end up paying for (or wearing) a stone that's nearly 33% lighter than you think.
What Is a Ratti, Anyway?
Before comparing the two, it helps to know where "ratti" comes from. It's an old Indian unit of weight, traced back to the seeds of the Abrus precatorius plant — also called Gunja or Rakti in Sanskrit. These small, red-and-black seeds were fairly uniform in weight, so goldsmiths and gem traders started using them as a natural measuring reference long before standardized scales existed.
Over time, as different regions adopted their own local standards, two versions of the ratti took shape — and that's where kacchi and pakki come in.
Kacchi Ratti: The Lighter, Regional Standard
Kacchi ratti literally means "raw" or "unrefined" ratti. It's the older, more traditional measurement, weighing 120 milligrams. This unit is still commonly used by jewellers and gemstone sellers in Punjab and Haryana, and occasionally in a few other northern pockets of India.
Because it's a smaller unit, a gemstone weighed in kacchi ratti will show a higher number than the same stone weighed in pakki ratti — even though the actual physical weight hasn't changed at all.
Also Check: Carat to Ratti Calculator
Pakki Ratti: The Standard Used Across India
Pakki ratti, sometimes also called "carat ratti," is the more widely accepted standard, weighing 180 milligrams. When astrologers, jewellers, or gemstone websites mention "ratti" without specifying which type, they almost always mean pakki ratti. This is the unit you'll come across most often in astrological recommendations, gemstone certificates, and online stores across India.
Kacchi Ratti vs Pakki Ratti: Side-by-Side Comparison
| Parameter | Kacchi Ratti | Pakki Ratti |
|---|---|---|
| Weight per unit | 120 mg | 180 mg |
| Also known as | Regional ratti | Carat ratti / standard ratti |
| Common usage region | Punjab, Haryana | Rest of India |
| Approx. carat value | ~0.6 carat | ~0.9 carat |
| Used by most astrologers | Rarely | Yes, by default |
| Risk of confusion | High, if not specified | Low, as it's the default |
Final Thoughts
Kacchi ratti and pakki ratti aren't two competing "types" of gemstone measurement in any technical sense — they're simply two regional standards for the same unit, with pakki ratti (180 mg) being the more widely accepted one across India. The safest approach, whether you're buying for astrological reasons or simply want an accurately weighed stone, is to always double-check which standard is being used and, ideally, cross-reference it with the carat weight before you finalize a purchase.
FAQs
Q1. What is the difference between kacchi ratti and pakki ratti?
Kacchi ratti weighs 120 mg and is mainly used in Punjab and Haryana, while pakki ratti weighs 180 mg and is the standard used across the rest of India.
Q2. Which ratti do astrologers usually recommend, kacchi or pakki?
Most astrologers recommend gemstone weight in pakki ratti, since it's the widely accepted default unit unless stated otherwise.
Q3. How many carats is 1 pakki ratti?
1 pakki ratti is approximately 0.9 carat.
Q4. How many carats is 1 kacchi ratti?
1 kacchi ratti is approximately 0.6 carat.
Q5. Why do some jewellers use kacchi ratti instead of pakki ratti?
It's mostly a regional practice carried forward from older, local trading traditions, particularly in parts of Punjab and Haryana, rather than any difference in gemstone quality.
Q6. Is it better to buy gemstones by carat instead of ratti?
Carat is the internationally standardized unit and removes any ambiguity, so many gemologists suggest cross-checking the ratti weight against the carat weight before buying.
Q7. Can the kacchi-pakki ratti confusion affect gemstone pricing?
Yes. Since kacchi ratti is a smaller unit than pakki ratti, the same gemstone will show a higher number in kacchi ratti, which can mislead buyers about the actual size and price of the stone.