3.6 Carat Marquise Lab Grown Diamond Prices Comparison

As of May 2026, 3.6 carat marquise lab grown diamonds usually range from $545 to $32,072, with an average price of $3,784.In the last month, prices for these diamonds are down 7.4%.Compare 51 verified listings across 6 retailers tracked by CaratRadar.

Market Insights
Last updated: 2026-05-29

3.6 Carat Marquise Lab Grown Diamond Market Overview

CaratRadar currently tracks 51 verified 3.6-carat marquise lab grown diamonds listed across 6 online retailers. Prices in this segment range from $545 to $32,072, with an average asking price of $3,784 and a median of $2,750.

The price spread of $31,527 (98.3% 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.

  • 51 diamonds tracked in this segment

  • Price range: $545 to $32,072

  • Average price: $3,784

  • Median price: $2,750

  • Available across 6 retailers

  • Savings potential: up to 98.3%

Price Range Overview

As of May 29, 2026
Spread $31,527

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

$545$32,072
Tracked

51

Lowest

$545

Average

$3,784

Median

$2,750

Highest

$32,072

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 | 3.61ct | Marquise | G | VS1 | Excellent
Save 23.9%

IGI | 3.61ct | Marquise | G | VS1 | Excellent

From $684

Compare at $899

2 stores
IGI | 3.68ct | Marquise | F | VVS2 | Excellent
Save 79.8%

IGI | 3.68ct | Marquise | F | VVS2 | Excellent

From $756

Compare at $3,750

3 stores
IGI | 3.64ct | Marquise | G | VS1 | Ideal
Save 79.9%

IGI | 3.64ct | Marquise | G | VS1 | Ideal

From $808

Compare at $4,020

5 stores
IGI | 3.63ct | Marquise | E | VVS2 | Very Good
Save 59.8%

IGI | 3.63ct | Marquise | E | VVS2 | Very Good

From $892

Compare at $2,217

4 stores
IGI | 3.63ct | Marquise | E | VVS2 | Excellent
Save 59%

IGI | 3.63ct | Marquise | E | VVS2 | Excellent

From $903

Compare at $2,201

3 stores
IGI | 3.67ct | Marquise | E | VVS2 | Excellent
Save 59%

IGI | 3.67ct | Marquise | E | VVS2 | Excellent

From $921

Compare at $2,249

3 stores
Save 50.6%

IGI | 3.63ct | Marquise | F | VS1 | Excellent

From $937

Compare at $1,898

3 stores
IGI | 3.63ct | Marquise | F | VS1 | Very Good
Save 79.9%

IGI | 3.63ct | Marquise | F | VS1 | Very Good

From $937

Compare at $4,670

5 stores
IGI | 3.7ct | Marquise | F | VVS2 | Very Good
Save 56.8%

IGI | 3.7ct | Marquise | F | VVS2 | Very Good

From $949

Compare at $2,196

3 stores
IGI | 3.62ct | Marquise | F | VS1 | Excellent
Save 49.5%

IGI | 3.62ct | Marquise | F | VS1 | Excellent

From $955

Compare at $1,890

3 stores
IGI | 3.7ct | Marquise | E | VVS2 | Very Good
Save 57.9%

IGI | 3.7ct | Marquise | E | VVS2 | Very Good

From $973

Compare at $2,313

4 stores
IGI | 3.66ct | Marquise | F | VS1 | Very Good
Save 44.9%

IGI | 3.66ct | Marquise | F | VS1 | Very Good

From $1,056

Compare at $1,917

2 stores
IGI | 3.63ct | Marquise | E | VVS2 | Excellent
Save 72.2%

IGI | 3.63ct | Marquise | E | VVS2 | Excellent

From $1,068

Compare at $3,845

2 stores
IGI | 3.64ct | Marquise | D | VS1 | Very Good
Save 51.5%

IGI | 3.64ct | Marquise | D | VS1 | Very Good

From $1,174

Compare at $2,421

3 stores
IGI | 3.62ct | Marquise | D | VS1 | Very Good
Save 49.2%

IGI | 3.62ct | Marquise | D | VS1 | Very Good

From $1,218

Compare at $2,398

3 stores
IGI | 3.67ct | Marquise | D | VS1 | Ideal
Save 50.1%

IGI | 3.67ct | Marquise | D | VS1 | Ideal

From $1,227

Compare at $2,458

3 stores
IGI | 3.61ct | Marquise | H | VS1 | Ideal
Save 73.9%

IGI | 3.61ct | Marquise | H | VS1 | Ideal

From $1,322

Compare at $5,070

2 stores
IGI | 3.62ct | Marquise | G | VS1 | Excellent
Save 75.6%

IGI | 3.62ct | Marquise | G | VS1 | Excellent

From $1,355

Compare at $5,557

5 stores
IGI | 3.68ct | Marquise | D | VVS2 | Ideal
Save 79.2%

IGI | 3.68ct | Marquise | D | VVS2 | Ideal

From $1,398

Compare at $6,710

8 stores
IGI | 3.7ct | Marquise | D | VVS2 | Very Good
Save 50.5%

IGI | 3.7ct | Marquise | D | VVS2 | Very Good

From $1,402

Compare at $2,832

3 stores
IGI | 3.63ct | Marquise | E | VVS2 | Ideal
Save 33%

IGI | 3.63ct | Marquise | E | VVS2 | Ideal

From $1,452

Compare at $2,169

3 stores
IGI | 3.68ct | Marquise | F | VVS2 | Very Good
Save 32.2%

IGI | 3.68ct | Marquise | F | VVS2 | Very Good

From $1,472

Compare at $2,172

2 stores
IGI | 3.63ct | Marquise | E | VVS1 | Ideal
Save 77.7%

IGI | 3.63ct | Marquise | E | VVS1 | Ideal

From $1,934

Compare at $8,662

2 stores
GIA | 3.61ct | Marquise | G | VS1 | Excellent
Save 70.5%

GIA | 3.61ct | Marquise | G | VS1 | Excellent

From $1,950

Compare at $6,620

5 stores
IGI | 3.65ct | Marquise | FANCY | VS1 | Very Good
Save 68.1%

IGI | 3.65ct | Marquise | FANCY | VS1 | Very Good

From $1,987

Compare at $6,228

2 stores
IGI | 3.68ct | Marquise | E | VVS1 | Excellent
Save 79.5%

IGI | 3.68ct | Marquise | E | VVS1 | Excellent

From $2,087

Compare at $10,160

6 stores
IGI | 3.62ct | Marquise | D | VVS2 | Very Good
Save 76.9%

IGI | 3.62ct | Marquise | D | VVS2 | Very Good

From $2,327

Compare at $10,080

4 stores
IGI | 3.63ct | Marquise | D | VVS2 | Ideal
Save 64.4%

IGI | 3.63ct | Marquise | D | VVS2 | Ideal

From $2,338

Compare at $6,570

4 stores
IGI | 3.63ct | Marquise | D | VVS2 | Very Good
Save 76.9%

IGI | 3.63ct | Marquise | D | VVS2 | Very Good

From $2,338

Compare at $10,110

4 stores
IGI | 3.67ct | Marquise | F | VVS1 | Ideal
Save 54.2%

IGI | 3.67ct | Marquise | F | VVS1 | Ideal

From $2,347

Compare at $5,128

5 stores
IGI | 3.66ct | Marquise | D | VVS2 | Very Good
Save 67.5%

IGI | 3.66ct | Marquise | D | VVS2 | Very Good

From $2,373

Compare at $7,310

4 stores
IGI | 3.63ct | Marquise | D | VVS1 | Ideal
Save 79.1%

IGI | 3.63ct | Marquise | D | VVS1 | Ideal

From $2,454

Compare at $11,740

9 stores
IGI | 3.7ct | Marquise | D | VVS1 | Ideal
Save 79.6%

IGI | 3.7ct | Marquise | D | VVS1 | Ideal

From $2,462

Compare at $12,070

7 stores
GIA | 3.7ct | Marquise | D | VVS2 | Excellent
Save 79.2%

GIA | 3.7ct | Marquise | D | VVS2 | Excellent

From $2,577

Compare at $12,415

9 stores
IGI | 3.61ct | Marquise | D | VVS1 | Ideal
Save 76.7%

IGI | 3.61ct | Marquise | D | VVS1 | Ideal

From $2,721

Compare at $11,680

9 stores
GIA | 3.68ct | Marquise | D | VVS2 | Excellent
Save 61.7%

GIA | 3.68ct | Marquise | D | VVS2 | Excellent

From $2,963

Compare at $7,730

6 stores
GIA | 3.7ct | Marquise | E | VVS1 | Very Good
Save 79.8%

GIA | 3.7ct | Marquise | E | VVS1 | Very Good

From $2,992

Compare at $14,803

8 stores
IGI | 3.62ct | Marquise | E | VVS1 | Excellent
Save 79.4%

IGI | 3.62ct | Marquise | E | VVS1 | Excellent

From $3,468

Compare at $16,819

8 stores
IGI | 3.67ct | Marquise | D | VVS1 | Ideal
Save 70.5%

IGI | 3.67ct | Marquise | D | VVS1 | Ideal

From $3,486

Compare at $11,820

4 stores
GIA | 3.63ct | Marquise | G | VS2 | Excellent
Save 68.2%

GIA | 3.63ct | Marquise | G | VS2 | Excellent

From $4,175

Compare at $13,110

2 stores
IGI | 3.62ct | Marquise | D | VVS1 | Very Good
Save 73.6%

IGI | 3.62ct | Marquise | D | VVS1 | Very Good

From $5,123

Compare at $19,406

5 stores
IGI | 3.67ct | Marquise | E | IF | Very Good
Save 58.9%

IGI | 3.67ct | Marquise | E | IF | Very Good

From $5,573

Compare at $13,560

7 stores
IGI | 3.65ct | Marquise | E | IF | Ideal
Save 58.7%

IGI | 3.65ct | Marquise | E | IF | Ideal

From $5,573

Compare at $13,510

4 stores
IGI | 3.67ct | Marquise | D | IF | Ideal
Save 67.5%

IGI | 3.67ct | Marquise | D | IF | Ideal

From $5,698

Compare at $17,540

9 stores
IGI | 3.7ct | Marquise | D | IF | Very Good
Save 74.8%

IGI | 3.7ct | Marquise | D | IF | Very Good

From $5,711

Compare at $22,635

9 stores
IGI | 3.61ct | Marquise | E | VVS2 | Excellent
Save 16.3%

IGI | 3.61ct | Marquise | E | VVS2 | Excellent

From $5,740

Compare at $6,860

2 stores
IGI | 3.69ct | Marquise | E | VVS2 | Ideal
Save 16.3%

IGI | 3.69ct | Marquise | E | VVS2 | Ideal

From $5,867

Compare at $7,010

3 stores
IGI | 3.7ct | Marquise | E | VVS2 | Ideal
Save 33.5%

IGI | 3.7ct | Marquise | E | VVS2 | Ideal

From $5,883

Compare at $8,850

3 stores
IGI | 3.7ct | Marquise | D | IF | Very Good
Save 64.4%

IGI | 3.7ct | Marquise | D | IF | Very Good

From $6,299

Compare at $17,680

6 stores
IGI | 3.7ct | Marquise | D | IF | Very Good
Save 35.1%

IGI | 3.7ct | Marquise | D | IF | Very Good

From $6,299

Compare at $9,711

5 stores

Entry pricing in this category starts around $545.

What to Know When Shopping for 3.6 Carat Marquise Lab Grown Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $31,527 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 $2,750 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 51 comparable stones in this segment. Prices start around $545 and go up to $32,072.

Based on the latest market data, the average asking price is about $3,784 with a median around $2,750.

The observed spread is roughly $31,527 across tracked listings, which is about 98.3% 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 $3,784. The median price is $2,750, 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 $31,527 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 3.6 carat Marquise diamonds.