6 Carat Heart Lab Grown Diamond Prices Comparison

As of May 2026, 6 carat heart lab grown diamonds usually range from $645 to $23,611, with an average price of $4,933.In the last month, prices for these diamonds are down 6.8%.Compare 68 verified listings across 6 retailers tracked by CaratRadar.

Market Insights
Last updated: 2026-05-29

6 Carat Heart Lab Grown Diamond Market Overview

CaratRadar currently tracks 68 verified 6-carat heart lab grown diamonds listed across 6 online retailers. Prices in this segment range from $645 to $23,611, with an average asking price of $4,933 and a median of $3,624.

The price spread of $22,966 (97.3% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.

These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.

  • 68 diamonds tracked in this segment

  • Price range: $645 to $23,611

  • Average price: $4,933

  • Median price: $3,624

  • Available across 6 retailers

  • Savings potential: up to 97.3%

Price Range Overview

As of May 29, 2026
Spread $22,966

Real market range for this carat, shape, and diamond type.

$645$23,611
Tracked

68

Lowest

$645

Average

$4,933

Median

$3,624

Highest

$23,611

Price History

Price Comparison Matrix

Live Listings

See all listings

Compare current retailer offers for this exact segment and open any listing for full details.

IGI | 6.02ct | Heart | E | SI1 | Very Good
Save 62%

IGI | 6.02ct | Heart | E | SI1 | Very Good

From $1,290

Compare at $3,394

4 stores
IGI | 6.01ct | Heart | E | VVS2 | Very Good
Save 70%

IGI | 6.01ct | Heart | E | VVS2 | Very Good

From $1,352

Compare at $4,511

8 stores
IGI | 6.02ct | Heart | F | VS1 | Very Good
Save 57.4%

IGI | 6.02ct | Heart | F | VS1 | Very Good

From $1,363

Compare at $3,201

3 stores
IGI | 6.05ct | Heart | E | VS2 | Very Good
Save 68.4%

IGI | 6.05ct | Heart | E | VS2 | Very Good

From $1,378

Compare at $4,361

5 stores
IGI | 6.04ct | Heart | E | VVS2 | Ideal
Save 71%

IGI | 6.04ct | Heart | E | VVS2 | Ideal

From $1,402

Compare at $4,832

7 stores
IGI | 6.03ct | Heart | D | VS1 | Excellent
Save 70.7%

IGI | 6.03ct | Heart | D | VS1 | Excellent

From $1,410

Compare at $4,817

6 stores
IGI | 6.03ct | Heart | E | VS1 | Very Good
Save 78.4%

IGI | 6.03ct | Heart | E | VS1 | Very Good

From $1,413

Compare at $6,537

7 stores
IGI | 6.09ct | Heart | E | VVS2 | Ideal
Save 71%

IGI | 6.09ct | Heart | E | VVS2 | Ideal

From $1,413

Compare at $4,871

7 stores
IGI | 6.05ct | Heart | E | VS1 | Excellent
Save 55%

IGI | 6.05ct | Heart | E | VS1 | Excellent

From $1,428

Compare at $3,173

2 stores
IGI | 6.04ct | Heart | G | VVS2 | Very Good
Save 59.1%

IGI | 6.04ct | Heart | G | VVS2 | Very Good

From $1,438

Compare at $3,517

5 stores
IGI | 6.05ct | Heart | E | VS1 | Excellent
Save 66.4%

IGI | 6.05ct | Heart | E | VS1 | Excellent

From $1,440

Compare at $4,289

8 stores
IGI | 6.07ct | Heart | E | VVS2 | Excellent
Save 57.2%

IGI | 6.07ct | Heart | E | VVS2 | Excellent

From $1,451

Compare at $3,388

6 stores
IGI | 6.02ct | Heart | E | VVS2 | Very Good
Save 56.4%

IGI | 6.02ct | Heart | E | VVS2 | Very Good

From $1,457

Compare at $3,340

3 stores
IGI | 6.02ct | Heart | F | VS1 | Very Good
Save 54.8%

IGI | 6.02ct | Heart | F | VS1 | Very Good

From $1,459

Compare at $3,225

6 stores
IGI | 6.08ct | Heart | E | VVS2 | Ideal
Save 25.1%

IGI | 6.08ct | Heart | E | VVS2 | Ideal

From $1,460

Compare at $1,950

2 stores
IGI | 6.08ct | Heart | E | VVS2 | Excellent
Save 25.1%

IGI | 6.08ct | Heart | E | VVS2 | Excellent

From $1,460

Compare at $1,950

2 stores
IGI | 6.09ct | Heart | E | VVS2 | Ideal
Save 56.5%

IGI | 6.09ct | Heart | E | VVS2 | Ideal

From $1,485

Compare at $3,413

6 stores
IGI | 6.09ct | Heart | E | VVS2 | Ideal
Save 56.2%

IGI | 6.09ct | Heart | E | VVS2 | Ideal

From $1,497

Compare at $3,416

6 stores
IGI | 6.02ct | Heart | F | VS1 | Very Good
Save 53.5%

IGI | 6.02ct | Heart | F | VS1 | Very Good

From $1,504

Compare at $3,236

3 stores
IGI | 6.02ct | Heart | F | VVS2 | Excellent
Save 37.8%

IGI | 6.02ct | Heart | F | VVS2 | Excellent

From $1,519

Compare at $2,444

3 stores
IGI | 6.02ct | Heart | E | VVS2 | Very Good
Save 37.5%

IGI | 6.02ct | Heart | E | VVS2 | Very Good

From $1,525

Compare at $2,440

3 stores
IGI | 6.07ct | Heart | E | VVS2 | Excellent
Save 54.3%

IGI | 6.07ct | Heart | E | VVS2 | Excellent

From $1,563

Compare at $3,417

6 stores
IGI | 6.08ct | Heart | D | VS1 | Ideal
Save 67.8%

IGI | 6.08ct | Heart | D | VS1 | Ideal

From $1,572

Compare at $4,888

3 stores
IGI | 6.02ct | Heart | D | VS1 | Very Good
Save 67.2%

IGI | 6.02ct | Heart | D | VS1 | Very Good

From $1,578

Compare at $4,812

4 stores
Save 72.9%

IGI | 6.03ct | Heart | FANCY | VVS2 | Very Good

From $1,588

Compare at $5,851

2 stores
IGI | 6.06ct | Heart | E | VVS2 | Ideal
Save 66.8%

IGI | 6.06ct | Heart | E | VVS2 | Ideal

From $1,610

Compare at $4,847

4 stores
IGI | 6.08ct | Heart | D | VS1 | Very Good
Save 66.4%

IGI | 6.08ct | Heart | D | VS1 | Very Good

From $1,649

Compare at $4,907

2 stores
IGI | 6.04ct | Heart | G | VVS2 | Ideal
Save 49.3%

IGI | 6.04ct | Heart | G | VVS2 | Ideal

From $1,769

Compare at $3,489

3 stores
IGI | 6ct | Heart | F | VVS2 | Ideal
Save 19.5%

IGI | 6ct | Heart | F | VVS2 | Ideal

From $1,846

Compare at $2,294

3 stores
IGI | 6.08ct | Heart | H | VS1 | Very Good

IGI | 6.08ct | Heart | H | VS1 | Very Good

From $1,921

Compare at $1,951

2 stores
IGI | 6.02ct | Heart | FANCY | VVS2 | Very Good
Save 74.8%

IGI | 6.02ct | Heart | FANCY | VVS2 | Very Good

From $1,965

Compare at $7,789

3 stores
IGI | 6.02ct | Heart | FANCY | VVS2 | Very Good

IGI | 6.02ct | Heart | FANCY | VVS2 | Very Good

From $1,965

Compare at $2,114

2 stores
IGI | 6.07ct | Heart | G | VVS2 | Ideal
Save 42.9%

IGI | 6.07ct | Heart | G | VVS2 | Ideal

From $2,022

Compare at $3,543

2 stores
IGI | 6.07ct | Heart | E | VVS2 | Very Good
Save 45.5%

IGI | 6.07ct | Heart | E | VVS2 | Very Good

From $2,076

Compare at $3,809

5 stores
GIA | 6.07ct | Heart | H | VS1 | Very Good
Save 79.4%

GIA | 6.07ct | Heart | H | VS1 | Very Good

From $2,103

Compare at $10,220

5 stores
IGI | 6.07ct | Heart | D | VVS2 | Ideal
Save 68.9%

IGI | 6.07ct | Heart | D | VVS2 | Ideal

From $2,138

Compare at $6,877

4 stores
IGI | 6.06ct | Heart | F | VS1 | Ideal
Save 74.4%

IGI | 6.06ct | Heart | F | VS1 | Ideal

From $2,155

Compare at $8,410

3 stores
GIA | 6.01ct | Heart | G | VS2 | Excellent
Save 80%

GIA | 6.01ct | Heart | G | VS2 | Excellent

From $2,186

Compare at $10,930

7 stores
IGI | 6.01ct | Heart | D | VVS2 | Very Good
Save 69.1%

IGI | 6.01ct | Heart | D | VVS2 | Very Good

From $2,246

Compare at $7,270

8 stores
IGI | 6.01ct | Heart | D | VVS2 | Very Good
Save 66.2%

IGI | 6.01ct | Heart | D | VVS2 | Very Good

From $2,280

Compare at $6,751

3 stores
IGI | 6.01ct | Heart | D | VVS2 | Ideal
Save 77.9%

IGI | 6.01ct | Heart | D | VVS2 | Ideal

From $2,291

Compare at $10,350

7 stores
IGI | 6.04ct | Heart | D | VVS2 | Very Good
Save 66.2%

IGI | 6.04ct | Heart | D | VVS2 | Very Good

From $2,303

Compare at $6,818

3 stores
IGI | 6.08ct | Heart | FANCY | VVS2 | Very Good
Save 73.3%

IGI | 6.08ct | Heart | FANCY | VVS2 | Very Good

From $2,360

Compare at $8,850

2 stores
IGI | 6.04ct | Heart | D | VVS2 | Very Good
Save 77.9%

IGI | 6.04ct | Heart | D | VVS2 | Very Good

From $2,456

Compare at $11,090

9 stores
IGI | 6.01ct | Heart | D | VVS2 | Very Good
Save 75.6%

IGI | 6.01ct | Heart | D | VVS2 | Very Good

From $2,493

Compare at $10,202

6 stores
IGI | 6.01ct | Heart | D | VVS2 | Excellent
Save 64.5%

IGI | 6.01ct | Heart | D | VVS2 | Excellent

From $2,496

Compare at $7,029

5 stores
IGI | 6.01ct | Heart | FANCY | VS1 | Very Good
Save 51.1%

IGI | 6.01ct | Heart | FANCY | VS1 | Very Good

From $2,734

Compare at $5,589

2 stores
IGI | 6.02ct | Heart | FANCY | VS2 | Good
Save 65%

IGI | 6.02ct | Heart | FANCY | VS2 | Good

From $2,741

Compare at $7,824

2 stores
Save 56.2%

IGI | 6.01ct | Heart | FANCY | VS1 | Very Good

From $2,873

Compare at $6,562

2 stores
IGI | 6.05ct | Heart | FANCY | VS1 | Very Good
Save 65.2%

IGI | 6.05ct | Heart | FANCY | VS1 | Very Good

From $2,896

Compare at $8,317

2 stores

Entry pricing in this category starts around $645.

What to Know When Shopping for 6 Carat Heart Lab Grown Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $22,966 or more.
  2. Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
  3. The median price of $3,624 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
  4. Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
  5. Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
  6. Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
  7. Heart-shaped diamonds require excellent symmetry to look balanced. Aim for carat weights above 0.5 where the shape is clearly visible.

Frequently Asked Questions

We currently track 68 comparable stones in this segment. Prices start around $645 and go up to $23,611.

Based on the latest market data, the average asking price is about $4,933 with a median around $3,624.

The observed spread is roughly $22,966 across tracked listings, which is about 97.3% from highest to lowest offer in this bucket.

We refresh pricing data daily so these pages stay current with market changes.

Based on completed market data, the fair market benchmark is $4,933. The median price is $3,624, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.

We currently track this stone category across 6 online retailers, giving you a broad view of the competitive landscape.

For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.

Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $22,966 across sellers, which is why direct certified-diamond comparison is essential.

We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.

Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.

Diamond Terminology

Carat
A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
Cut
Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
Color
Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
Clarity
Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.

Related Price Categories

Explore adjacent carat ranges and shapes to compare market shifts.

Tracking Lab Grown inventory for 6 carat Heart diamonds.