Ratti to carat conversion is the most common question we get, because jewellers in Pakistan quote stones in ratti while labs, certificates and GemStore.pk list them in carats. The short answer: 1 carat = 0.2 grams, always. A ratti, however, has two values in use — the standard ratti of 0.1215 g (about 0.61 carat) and the jewellers' "pakki" ratti of 0.182 g (0.91 carat). Ask which one a seller means before you compare prices.
Ratti to carat conversion table
| Ratti | Standard ratti (0.6075 ct) | Jewellers' ratti (0.91 ct) | Grams (standard / jewellers') |
|---|---|---|---|
| 1 ratti | 0.61 ct | 0.91 ct | 0.122 g / 0.182 g |
| 2 ratti | 1.22 ct | 1.82 ct | 0.243 g / 0.364 g |
| 3 ratti | 1.82 ct | 2.73 ct | 0.365 g / 0.546 g |
| 4 ratti | 2.43 ct | 3.64 ct | 0.486 g / 0.728 g |
| 5 ratti | 3.04 ct | 4.55 ct | 0.608 g / 0.910 g |
| 6 ratti | 3.65 ct | 5.46 ct | 0.729 g / 1.092 g |
| 7 ratti | 4.25 ct | 6.37 ct | 0.851 g / 1.274 g |
| 8 ratti | 4.86 ct | 7.28 ct | 0.972 g / 1.456 g |
| 9 ratti | 5.47 ct | 8.19 ct | 1.094 g / 1.638 g |
| 10 ratti | 6.08 ct | 9.10 ct | 1.215 g / 1.820 g |
| 12 ratti | 7.29 ct | 10.92 ct | 1.458 g / 2.184 g |
Example: a "5 ratti neelam" is 3.04 carats by the standard ratti but 4.55 carats by the jewellers' ratti — a 50% difference in weight and therefore in price. Always confirm the carat weight on a digital scale; every GemStore.pk invoice states carats to two decimals.
Carat, ratti, gram and tola — the units side by side
- Carat (ct) — the international unit for gemstones: 1 ct = 0.2 g = 200 mg. Sub-divided into 100 points (a 0.25 ct stone is "25 points").
- Ratti — a traditional South Asian unit based on the seed of the Abrus precatorius (ghungchi) plant: 0.1215 g standard, 0.182 g in most Pakistani jewellery shops.
- Gram (g) — 5 carats. Used for rough stones and beads.
- Tola — 11.664 g = 58.32 ct. Used for gold, rarely for gemstones.
- Masha — 1/12 of a tola = 0.972 g ≈ 4.86 ct = 8 standard ratti.
How to convert yourself
- Ratti → carat (standard): multiply by 0.6075. Example: 7 × 0.6075 = 4.25 ct.
- Ratti → carat (jewellers'): multiply by 0.91. Example: 7 × 0.91 = 6.37 ct.
- Carat → ratti (standard): divide by 0.6075. Example: 5 ct ÷ 0.6075 ≈ 8.2 ratti.
- Carat → grams: divide by 5. Example: 5 ct = 1 g.
Why carat weight matters for astrology
Astrologers usually prescribe a minimum weight — commonly 3 to 7 ratti for neelam, pukhraj or yaqoot. Because the two ratti standards differ, ask your astrologer for the weight in carats or grams, then choose the stone by that number. Our product pages list carat weight and you can filter each collection by size.
Weight is not the only thing that sets the price
Two stones of the same weight can differ ten-fold in price. Colour saturation, clarity, cut and origin come first; treatment (heating, glass filling, dyeing) comes next. A certified 3-carat unheated stone is worth more than a 6-carat treated one. The gemstone prices in Pakistan guide explains what drives each stone's price.
Common questions
How many carats is 1 ratti?
0.6075 carat by the standard ratti (0.1215 g), or 0.91 carat by the jewellers' ratti (0.182 g) used in most Pakistani shops. Ask which standard the seller uses.
How many ratti is 5 carats?
About 8.2 standard ratti, or 5.5 jewellers' ratti.
Is 1 carat equal to 1 gram?
No. One carat is 0.2 grams; five carats make one gram.
Why does GemStore.pk list carats instead of ratti?
Because carat is a fixed international unit that every lab certificate and digital scale uses. Ratti has two competing values, which makes price comparison unreliable.
What is a point in gemstone weight?
One hundredth of a carat. A 0.50 ct stone is "50 points".
Quick checklist before you buy any gemstone
- Ask for the exact carat weight, origin and treatment — vague listings are the first warning sign.
- Compare the price with our gemstone price guide; a price far below the market usually means glass, synthetic or heavily treated material.
- Insist on lab verification. Every stone at GemStore.pk is natural and lab-verifiable.
- Use cash on delivery so you inspect the stone before paying, and keep the 7-day return window in mind.
Ratti to Carat: key takeaways
- The short answer on ratti to carat: look at colour, clarity, weight and treatment together — no single test is enough.
- Buy only stones sold with their exact carat weight, origin and treatment stated, and insist on lab verification.
- Pay on delivery, inspect the stone in daylight, and use the 7-day return window if anything does not match the listing.
Frequently asked questions
Can I check ratti to carat at home?
Partly. The visual and hardness checks in this guide catch most fakes, but only a gemmological lab can confirm a natural, untreated stone. Buy from a seller who welcomes testing.
Where can I buy original gemstones in Pakistan?
GemStore.pk sells 100% original, lab-verifiable gemstones with nationwide cash on delivery and a 7-day return policy.
Should I consult an astrologer before wearing a stone?
Yes, if you are wearing it for astrological reasons. Our gemstones by zodiac sign guide gives the traditional pairings as a starting point.
How long does delivery take?
Major cities (Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar) usually receive parcels in 1–3 working days; other towns in 3–5. You pay the courier on delivery after checking the box, and every parcel is tracked on WhatsApp.
How GemStore.pk can help
Not sure what you are looking at? Send a daylight photo of the stone — or of a listing you found elsewhere — on WhatsApp and we will tell you honestly what it looks like and what a fair price would be. If you decide to buy from us, every piece is sold with its exact carat weight, is lab-verifiable, and can be inspected before you pay. If not, you still leave with a straight answer.
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- Gemstone Buying Guide Pakistan: Prices, Certification & Tips
Explore more about Ratti to Carat: check the gemstone price guide for Pakistan, find your stone by zodiac sign.
