5.6 Carat Marquise Lab Grown Diamond Prices Comparison

As of April 2026, 5.6 carat marquise lab grown diamonds usually range from $675 to $22,055, with an average price of $4,489.In the last month, prices for these diamonds are down 1.8%.Compare 46 verified listings across 4 retailers tracked by CaratRadar.

Market Insights
Last updated: 2026-04-14

5.6 Carat Marquise Lab Grown Diamond Market Overview

CaratRadar currently tracks 46 verified 5.6-carat marquise lab grown diamonds listed across 4 online retailers. Prices in this segment range from $675 to $22,055, with an average asking price of $4,489 and a median of $3,267.

The price spread of $21,380 (96.9% 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.

  • 46 diamonds tracked in this segment

  • Price range: $675 to $22,055

  • Average price: $4,489

  • Median price: $3,267

  • Available across 4 retailers

  • Savings potential: up to 96.9%

Price Range Overview

As of Apr 14, 2026
Spread $21,380

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

$675$22,055
Tracked

46

Lowest

$675

Average

$4,489

Median

$3,267

Highest

$22,055

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 | 5.6ct | Marquise | G | VS1 | Ideal
Save 71.6%

IGI | 5.6ct | Marquise | G | VS1 | Ideal

From $2,822

Compare at $9,940

4 stores
IGI | 5.6ct | Marquise | F | VVS2 | Ideal
Save 82.3%

IGI | 5.6ct | Marquise | F | VVS2 | Ideal

From $2,225

Compare at $12,550

3 stores
Save 86.3%

IGI | 5.6ct | Marquise | E | VS2 | Excellent

From $1,514

Compare at $11,090

7 stores
IGI | 5.6ct | Marquise | E | VS1 | Ideal
Save 41.9%

IGI | 5.6ct | Marquise | E | VS1 | Ideal

From $1,611

Compare at $2,771

4 stores
IGI | 5.6ct | Marquise | F | VVS2 | Ideal
Save 83.4%

IGI | 5.6ct | Marquise | F | VVS2 | Ideal

From $2,103

Compare at $12,650

5 stores
IGI | 5.6ct | Marquise | E | VS2 | Ideal
Save 72.2%

IGI | 5.6ct | Marquise | E | VS2 | Ideal

From $1,213

Compare at $4,365

2 stores
IGI | 5.6ct | Marquise | E | VS2 | Ideal
Save 71.8%

IGI | 5.6ct | Marquise | E | VS2 | Ideal

From $1,232

Compare at $4,365

2 stores
IGI | 5.6ct | Marquise | E | VVS2 | Very Good
Save 79.4%

IGI | 5.6ct | Marquise | E | VVS2 | Very Good

From $2,591

Compare at $12,554

6 stores
IGI | 5.6ct | Marquise | FANCY | VS2 | Ideal
Save 20.4%

IGI | 5.6ct | Marquise | FANCY | VS2 | Ideal

From $5,532

Compare at $6,947

2 stores
IGI | 5.61ct | Marquise | H | VVS2 | Ideal
Save 78.9%

IGI | 5.61ct | Marquise | H | VVS2 | Ideal

From $1,958

Compare at $9,300

4 stores
IGI | 5.61ct | Marquise | F | VS1 | Excellent
Save 76.7%

IGI | 5.61ct | Marquise | F | VS1 | Excellent

From $1,853

Compare at $7,940

8 stores
IGI | 5.61ct | Marquise | G | VS1 | Very Good
Save 75.6%

IGI | 5.61ct | Marquise | G | VS1 | Very Good

From $1,250

Compare at $5,130

5 stores
IGI | 5.61ct | Marquise | F | VS1 | Ideal
Save 82.5%

IGI | 5.61ct | Marquise | F | VS1 | Ideal

From $1,234

Compare at $7,040

5 stores
IGI | 5.61ct | Marquise | F | VS1 | Ideal
Save 82.7%

IGI | 5.61ct | Marquise | F | VS1 | Ideal

From $1,215

Compare at $7,040

5 stores
IGI | 5.61ct | Marquise | F | VS1 | Ideal
Save 83.5%

IGI | 5.61ct | Marquise | F | VS1 | Ideal

From $1,234

Compare at $7,480

5 stores
IGI | 5.61ct | Marquise | E | VS1 | Ideal
Save 38.4%

IGI | 5.61ct | Marquise | E | VS1 | Ideal

From $2,895

Compare at $4,700

3 stores
IGI | 5.62ct | Marquise | F | VS1 | Ideal

IGI | 5.62ct | Marquise | F | VS1 | Ideal

From $2,195

2 stores
IGI | 5.62ct | Marquise | F | VS1 | Ideal
Save 77.3%

IGI | 5.62ct | Marquise | F | VS1 | Ideal

From $1,834

Compare at $8,070

7 stores
IGI | 5.62ct | Marquise | E | VVS2 | Ideal
Save 81.2%

IGI | 5.62ct | Marquise | E | VVS2 | Ideal

From $1,675

Compare at $8,900

7 stores
IGI | 5.63ct | Marquise | F | VS1 | Very Good
Save 75.5%

IGI | 5.63ct | Marquise | F | VS1 | Very Good

From $1,393

Compare at $5,690

6 stores
IGI | 5.64ct | Marquise | F | VS1 | Ideal
Save 78.7%

IGI | 5.64ct | Marquise | F | VS1 | Ideal

From $1,605

Compare at $7,530

5 stores
IGI | 5.64ct | Marquise | E | VS1 | Ideal
Save 72.7%

IGI | 5.64ct | Marquise | E | VS1 | Ideal

From $1,277

Compare at $4,680

2 stores
IGI | 5.64ct | Marquise | D | VVS2 | Excellent
Save 69.3%

IGI | 5.64ct | Marquise | D | VVS2 | Excellent

From $5,078

Compare at $16,550

4 stores
IGI | 5.64ct | Marquise | F | VS1 | Ideal
Save 71.1%

IGI | 5.64ct | Marquise | F | VS1 | Ideal

From $1,240

Compare at $4,285

2 stores
IGI | 5.65ct | Marquise | F | VS1 | Very Good
Save 75.5%

IGI | 5.65ct | Marquise | F | VS1 | Very Good

From $1,398

Compare at $5,710

5 stores
IGI | 5.65ct | Marquise | F | VS2 | Very Good
Save 75.5%

IGI | 5.65ct | Marquise | F | VS2 | Very Good

From $1,398

Compare at $5,710

5 stores
IGI | 5.65ct | Marquise | F | VVS2 | Excellent
Save 84.6%

IGI | 5.65ct | Marquise | F | VVS2 | Excellent

From $1,945

Compare at $12,660

8 stores
IGI | 5.65ct | Marquise | E | VS2 | Ideal
Save 72.2%

IGI | 5.65ct | Marquise | E | VS2 | Ideal

From $1,224

Compare at $4,405

2 stores
IGI | 5.65ct | Marquise | E | VS1 | Ideal
Save 74.4%

IGI | 5.65ct | Marquise | E | VS1 | Ideal

From $1,242

Compare at $4,855

2 stores
GCAL | 5.67ct | Marquise | H | VS2 | Excellent
Save 72.9%

GCAL | 5.67ct | Marquise | H | VS2 | Excellent

From $2,644

Compare at $9,760

2 stores
IGI | 5.67ct | Marquise | G | VS1 | Ideal
Save 69.5%

IGI | 5.67ct | Marquise | G | VS1 | Ideal

From $1,867

Compare at $6,120

6 stores
IGI | 5.67ct | Marquise | G | VS2 | Very Good
Save 75.6%

IGI | 5.67ct | Marquise | G | VS2 | Very Good

From $1,263

Compare at $5,180

5 stores
IGI | 5.67ct | Marquise | G | VS1 | Very Good
Save 71.1%

IGI | 5.67ct | Marquise | G | VS1 | Very Good

From $1,884

Compare at $6,510

8 stores
IGI | 5.67ct | Marquise | F | VVS2 | Excellent
Save 84.6%

IGI | 5.67ct | Marquise | F | VVS2 | Excellent

From $1,952

Compare at $12,710

8 stores
IGI | 5.67ct | Marquise | E | VS2 | Excellent
Save 72.6%

IGI | 5.67ct | Marquise | E | VS2 | Excellent

From $1,210

Compare at $4,420

2 stores
IGI | 5.67ct | Marquise | E | VS2 | Ideal
Save 73.6%

IGI | 5.67ct | Marquise | E | VS2 | Ideal

From $1,210

Compare at $4,590

2 stores
IGI | 5.69ct | Marquise | E | VS1 | Ideal
Save 73.3%

IGI | 5.69ct | Marquise | E | VS1 | Ideal

From $1,307

Compare at $4,890

2 stores
IGI | 5.69ct | Marquise | E | VS2 | Ideal
Save 73.6%

IGI | 5.69ct | Marquise | E | VS2 | Ideal

From $1,214

Compare at $4,605

2 stores
IGI | 5.69ct | Marquise | F | VS1 | Ideal
Save 72.6%

IGI | 5.69ct | Marquise | F | VS1 | Ideal

From $1,233

Compare at $4,495

2 stores
IGI | 5.69ct | Marquise | F | VS1 | Ideal
Save 72.2%

IGI | 5.69ct | Marquise | F | VS1 | Ideal

From $1,251

Compare at $4,495

2 stores
IGI | 5.69ct | Marquise | F | VVS2 | Ideal
Save 52.1%

IGI | 5.69ct | Marquise | F | VVS2 | Ideal

From $1,840

Compare at $3,842

5 stores
IGI | 5.7ct | Marquise | F | VS2 | Very Good
Save 75.5%

IGI | 5.7ct | Marquise | F | VS2 | Very Good

From $1,410

Compare at $5,760

5 stores
IGI | 5.7ct | Marquise | F | VS1 | Very Good
Save 75.5%

IGI | 5.7ct | Marquise | F | VS1 | Very Good

From $1,410

Compare at $5,760

4 stores
IGI | 5.7ct | Marquise | F | VS1 | Excellent
Save 75.3%

IGI | 5.7ct | Marquise | F | VS1 | Excellent

From $1,883

Compare at $7,620

7 stores
Save 79.7%

IGI | 5.7ct | Marquise | F | VS1 | Excellent

From $1,453

Compare at $7,160

7 stores
IGI | 5.7ct | Marquise | D | VS1 | Excellent
Save 80.6%

IGI | 5.7ct | Marquise | D | VS1 | Excellent

From $2,851

Compare at $14,660

8 stores

Entry pricing in this category starts around $675.

What to Know When Shopping for 5.6 Carat Marquise Lab Grown Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $21,380 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 $3,267 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. Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.

Frequently Asked Questions

We currently track 46 comparable stones in this segment. Prices start around $675 and go up to $22,055.

Based on the latest market data, the average asking price is about $4,489 with a median around $3,267.

The observed spread is roughly $21,380 across tracked listings, which is about 96.9% from highest to lowest offer in this bucket.

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

Based on our data, the median price is $3,267, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.

We currently track this stone category across 4 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 $21,380 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 5.6 carat Marquise diamonds.