1 Carat vs 2 Carat Lab Grown Diamond Price Comparison in India (2026)

Lab-grown diamonds are very much popular in India these days, but pricing is the most concerning topic for everyone out there. Lab-grown diamonds are a great alternative to natural diamonds. But the price difference is very high in these diamonds, if you are aware. 

People in India, generally, buy a 1 carat or a 2 carat diamond. And the price difference is pretty big. That said, if you want to make sure you're getting the best value for your money or not, here we are. 

In this guide, we are going to see a detailed comparison of 1 carat vs 2 carat lab grown diamond price in India. If you are really interested in this thing, read this article till the very last word. 

Understanding Diamond Carat Weight

1. What Does Carat Mean in Diamonds?

Carat is a unit of weight that is used to measure diamonds, not size. One carat equals 200 milligrams or 0.2 grams. This is important to understand because many people think carat is all about how big a diamond looks. But it measures how much it weighs. 

2. How Carat Affects Diamond Size Visually

While carat measures weight, it does impact how large a diamond appears. A 1 carat diamond measures about 6.5mm in diameter when it's a round brilliant cut. A 2 carat diamond measures approximately 8.2mm in diameter. That might not sound like a huge difference. But visually, a 2 carat diamond is very large and more impressive. Especially in a 1 carat vs 2 carat lab diamond ring comparison.

3. Size Comparison: 1 Carat vs 2 Carat

Here's what you need to know: a 2 carat diamond is not twice the size of a 1 carat diamond in terms of diameter. But it's about 26% larger. But for your knowledge, it has more depth and overall presence. When set in lab-grown diamond rings, this difference is quite noticeable. Because the 2 carat diamond covers more area on your finger, and can be seen from a far.

4. Why Carat is not Everything

The lab grown diamond cost in India depends on all 4Cs (Cut, Clarity, Color, and Carat). A well-cut 1 carat diamond with better clarity can look more beautiful than a poorly-cut 2 carat diamond. Having said that, the cut shows how light bounces through the diamond.

1 Carat Lab Grown Diamond Price in India (2026)

1. How Much Does 1 Carat Lab-Grown Diamond Cost in India?

The 1 carat lab grown diamond price in India is around ₹25,000 to ₹1,00,000, depending on quality. In general, most customers spend between ₹30,000 and ₹70,000 for a good quality 1 carat diamond. This is much less expensive than natural diamonds. Which can cost ₹2,00,000 to ₹5,00,000 for the same carat weight.

2. 1 Carat Lab Grown Diamond Price Comparison Table

3. Factors Affecting 1 Carat Diamond Pricing

Cut Quality: Cut is the most important factor which is impacting the price. An excellent cut 1 carat diamond costs ₹10,000-₹15,000 more than a good cut diamond. But the difference in shine is worth it. 

Clarity Grades: Clarity means internal imperfections. VVS (Very Very Slightly Included) diamonds are nearly flawless and cost ₹60,000-₹1,00,000 per carat. VS (Very Slightly Included) diamonds range from ₹40,000-₹60,000 and offer excellent value as we cannot see its inclusions with our naked eye. SI (Slightly Included) diamonds cost ₹25,000-₹40,000 and can be great budget options.

Color Grades: Color is graded from D (colorless) to Z (light yellow). D-F grade diamonds are colorless and cost ₹55,000-₹1,00,000 per carat. G-H grade diamonds appear nearly colorless and range from ₹35,000-₹55,000, offering nice value. Most people cannot tell the difference between D and G grades when the diamond is set in jewellery.

Certification Costs: Certified diamonds from IGI, GIA, or SGL cost slightly more but provide authentication and resale value. This is why certification adds ₹2,000-₹5,000 to the total cost.

Best Value Options: When it comes to the cost of the best lab grown diamond jewellery in India, choose G-H color with VS2 clarity and excellent cut. This combination gives you a beautiful diamond at ₹35,000-₹45,000 that looks nearly identical to more expensive grades when set in lab-grown diamond rings.

2 Carat Lab Grown Diamond Price in India (2026)

1. How Much Does 2 Carat Lab-Grown Diamond Cost in India?

The 2 carat lab grown diamond price in India ranges from ₹60,000 to ₹2,00,000, depending on quality specifications. But generally, most customers invest between ₹90,000 and ₹1,50,000 for good quality 2 carat diamonds. And, compared to natural diamonds, which cost ₹6,00,000 to ₹15,00,000 for the same carat weight, lab-grown diamonds are far better.

2. 2 Carat Lab Grown Diamond Price Comparison Table

3. Why 2 Carat Diamonds Cost More

A 2 carat natural diamond can cost two or three times more than a 1 carat of the same quality because of its rarity. Unlike natural diamonds, the price for lab-grown diamonds doesn't grow like this. The price per carat is still higher for a 2 carat stone than for a 1 carat diamond. This is because larger, high-quality diamonds take more time, energy, and skill to produce

4. Best Value Options for 2 Carat Diamonds

If value is more important for you, then these options can help a lot:

• Choose Under-Weight: A 1.90 or 1.95 carat diamond looks the same as a full 2 carat but costs noticeably less.
• Choose G-H Color and VS2 Clarity: These look beautiful once set and avoid unnecessary premium.
• Select Fancy Shapes: Oval and pear cuts appear larger on hand and cost less than round stones.

Side-by-Side Price Comparison: 1 Carat vs 2 Carat

1. What Is the Price Difference Between 1 Carat and 2 Carat Lab Grown Diamonds?

The difference in price is so big. A 2-carat lab-grown diamond price in India ranges from ₹60,000 to ₹2,00,000, while a 1 carat ranges from ₹25,000 to ₹1,00,000. The 2 carat option typically costs 2.5 to 3 times more than a 1 carat diamond of similar quality.

2. Direct Price Comparison Table

3. Why 2 Carat Costs More Than Double

Visual Size vs Price Difference: While a 2 carat diamond costs 2.5-3x more, it is only about 26% larger in diameter. The surface area increase is approximately 60%, which means you're paying significantly more for a moderately larger appearance.

Comparison with Natural Diamonds: For example, a 1-carat natural diamond costs ₹200,000–₹500,000, while a 2-carat natural diamond costs ₹600,000–₹1500,000. The savings on lab-grown diamond prices in India are very big. You save 60–70% regardless of carat weight.

Value for Money Assessment: If budget is a concern for you, a 1 carat diamond is the best option for you. But, if you want to wear a large diamond, then the 2 carat will be a good investment. The choice depends on your priorities and how you plan to use the jewellery.

1 Carat vs 2 Carat Diamond: Which Size Should You Choose?

1. Based on Budget Considerations

If your budget is ₹50,000-₹70,000, a 1 carat diamond with excellent details is your best choice. You'll get better cut, clarity, and color. If your budget is ₹1,00,000-₹1,50,000, you can either get a premium 1 carat or a good quality 2 carat diamond.

2. Based on Occasion

For daily wear, 1 carat is a nice option. Because it's quite noticeable, but not too simple and basic. For engagement rings, a 1.5-2 carat would be a great option. For special occasion jewellery that you'll wear a few times a year, 2 carat would be a great option then. 

3. Based on Hand Size and Personal Style

And if your hands are small, like if your ring size is below 6, then you can buy 1-1.5 carat diamonds. And for larger hands (ring size 7 and above), you can buy 2 carat diamonds. Having said that, you should consider your style and personal preference.

4. Based on Jewellery Type

For lab-grown diamond earrings, 1 carat total weight (0.50 each) is comfortable for daily wear, while 2 carat total (1 carat each) is better for occasions. For lab-grown diamond rings, your lifestyle matters – active lifestyles suit 1 carat, while those who primarily wear jewellery for social events can enjoy 2 carat pieces. For necklaces, 1 carat pendants are versatile, while 2 carat creates drama.

5. Practical Buying Advice

Don't stretch your budget to get 2 carats with poor specifications. A brilliant 1 carat diamond looks better than a dull 2 carat. If you can afford excellent quality in both sizes, choose based on your wearing styles. 

Why Choose Lukson for Lab-Grown Diamonds

Competitive Pricing for Both Sizes: We offer affordable pricing for both 1 carat and 2 carat lab grown diamonds. Our 1 carat diamonds start from ₹30,000, while our 2 carat options begin at ₹75,000. And at this price point, along with your purchase, you will receive proper customer support, if needed.

Quality Certifications Offered: Every Lukson lab grown diamonds come with certification from recognized laboratories like SGL. Our gold is BIS hallmarked. Which means you will get quality metal in your jewellery. In the certificate, you will be able to see your diamond's exact specifications like cut, clarity, color, and carat weight. 

Range Available in Different Sizes: In our collection, we have so many options when it comes to 1 and 2 carat diamonds. If you're looking for lab-grown diamond rings, earrings, bracelets, or necklaces, you'll find multiple options in each category. 

Customer Guarantees and Warranties

• You get a lifetime buy-back policy when you buy any jewellery from our store.
• You also receive a lifetime plating warranty for all of your purchases.
• You have a 7-day return window, giving you enough time to check the piece.

Easy Online Shopping Experience: You can filter by size, price, design, and metal type to find exactly what you need. Detailed product images and specifications help you choose the right option for you.  We deliver in India within 7-10 business days and accept multiple payment methods for your convenience.