Diamond Price Per Gram in India 2026

1 gram diamond equals 5 carats. Unlike gold, there is no fixed diamond price per gram because diamond value depends on carat weight, cut, colour, clarity, and certification. In India, a high-quality 1 gram (5-carat) diamond can cost anywhere from several lakhs to multiple crores of rupees, depending on its quality and rarity. Buyers who are also weighing metal choices for their diamond jewellery can read about whether platinum is more expensive than diamond to better plan their overall budget.

If you're searching for the 1 gram diamond price in India, the first thing to know is that diamonds are priced in carats, not grams. Since 1 gram equals 5 carats, the value of a 1-gram diamond can vary dramatically based on quality. In this guide, Jewelove explains diamond weight conversions, estimated prices, and what a 1-gram diamond actually looks like in real life.

Why Indians Search for Diamond Prices Per Gram

Indian buyers are accustomed to purchasing gold by weight. Gold rates are quoted per gram every day, so it's natural for people to search for the diamond price per gram or the 1 gram diamond rate today.

However, diamonds follow a completely different pricing system.

While gold has a relatively standard market rate per gram, diamond prices depend on:

• Carat weight

• Cut quality

• Colour grade

• Clarity grade

• Certification

• Shape and rarity

This is why there is no universal "diamond rate per gram" similar to gold. Those who want a broader understanding of how certified stones are priced across categories can explore a detailed guide on real diamond price in India before making a purchase decision.

Key Fact: 1 Gram = 5 Carats

The standard conversion is simple:

• 1 carat = 0.2 grams

• 1 gram = 5 carats

This conversion helps answer searches such as:

• 1 gram diamond price in Indian rupees

• diamond price per gram

• 1 ग्राम हीरे की कीमत

Before calculating value, you must first convert grams into carats because diamonds are traded and certified in carats.

Gram to Carat Conversion Table

Diamond Price Per Gram in India (2026 Estimates)

Important: There is no official "1 gram diamond rate today" because diamonds are not traded like gold. The estimates below assume round brilliant, certified diamonds of commercial-to-premium quality.

What Does a 1 Gram Diamond Actually Cost?

Many buyers assume that 1 gram of diamond is a small amount because 1 gram of gold is relatively small.

In reality, a 1 gram diamond weighs 5 carats, which is considered a large diamond in fine jewellery.

A certified 5-carat diamond can easily cost tens of lakhs or several crores depending on its quality.

For example:

• Commercial-quality 5-carat diamonds may start around ₹35 lakh.

• Premium-quality 5-carat diamonds can exceed ₹1 crore.

• Rare D-colour, flawless or investment-grade stones may cost several crores.

This is why the answer to the 1 gram diamond price in India often surprises first-time buyers. Those looking for exceptional craftsmanship paired with premium diamonds can explore the diamond luxury ring collection, where large certified stones are set in exquisite designs.

How Much Diamond Weight Is in a Typical Ring?

Most diamond jewellery contains far less than 1 gram of diamond weight.

Here are some common examples:

A classic solitaire engagement ring typically features a diamond weighing between 0.30 and 1.00 carat, which is only 0.06–0.20 grams. Couples who want matching pieces can explore platinum diamond rings for couple that feature coordinated certified diamond designs in durable platinum settings.

Natural Diamonds vs Lab-Grown Diamonds

When researching the 1 gram diamond rate today, it is important to know whether you're comparing natural diamonds or lab-grown diamonds.

Both are real diamonds, but lab-grown diamonds are generally more affordable while offering the same physical and optical properties as natural diamonds. Certification remains essential regardless of the diamond's origin. Certified diamonds from recognised laboratories help buyers understand the stone's quality and authenticity. Women seeking elegant everyday diamond pieces can explore platinum and diamond rings for women that combine certified stones with the lasting beauty of platinum.

Why Certification Matters

A diamond's value is determined not just by weight, but also by quality.

Always look for certification from recognised gemological laboratories that evaluate:

• Cut

• Colour

• Clarity

• Carat weight

Certification helps buyers understand exactly what they are purchasing and provides confidence in the diamond's quality. Men looking for a refined certified diamond piece can explore a platinum diamond ring for men that pairs a quality-graded stone with a durable and elegant platinum band.

Once purchased, learning how to clean a platinum diamond ring at home helps maintain its brilliance and ensures it stays in pristine condition for years to come.

Looking for Certified Diamond Jewellery?

At Jewelove, every piece is crafted with a focus on authenticity and transparency. Jewelove specialises in Pt950 hallmarked platinum jewellery, offers PGI-certified platinum jewellery, and features certified diamond jewellery designed for engagements, weddings and everyday luxury. The company was founded by Sambhav Karnawat, a fourth-generation jeweller and IIT Kanpur alumnus.

Whether you're buying your first solitaire or comparing natural and lab-grown diamonds, choosing certified diamonds and trusted jewellery brands is essential for making an informed purchase. Jewelove also publishes detailed diamond education resources to help buyers understand certification, quality and value before they buy.

Final Takeaway

The answer to the question "What is the 1 gram diamond price in India?" starts with one simple fact: 1 gram equals 5 carats.

Because diamonds are valued based on quality as well as weight, there is no fixed diamond price per gram. However, a certified 1-gram diamond can realistically cost anywhere from ₹35 lakh to ₹3 crore or more. Understanding the gram-to-carat conversion and the factors that influence diamond pricing will help you make smarter buying decisions.

Frequently Asked Questions

Q1. What is the 1 gram diamond price in India today?

Since 1 gram equals 5 carats, the price can range from approximately ₹35 lakh to ₹3 crore or more depending on the diamond's quality and certification. 

Q2. How many carats are in 1 gram of diamond?

1 gram equals exactly 5 carats.

Q3. What is the diamond price per gram?

There is no fixed diamond price per gram because diamonds are valued based on carat weight and quality factors such as cut, colour, clarity, and certification.

Q4. What is the 1 gram diamond price in Indian rupees?

A 1-gram (5-carat) diamond may cost anywhere from around ₹35 lakh to several crores, depending on its quality and rarity.

Q5. What is the 10 gram diamond price in India?

A 10-gram diamond equals 50 carats. Diamonds of this size are exceptionally rare and can be worth many crores of rupees, often reaching auction-level valuations.

Q6. Why are diamonds measured in carats and not grams?

The diamond industry uses carats as the international standard unit for measuring gemstone weight.

Q7. Is a 24-carat diamond the same as 24-carat gold?

No, 24-carat gold refers to purity. While a 24-carat diamond refers to weight. These are completely different measurements.