1.5 Carat Lab Grown Diamond Prices Comparison

As of February 2026, the average price of a 1.5 carat lab grown diamond is $735.1.5 carat diamonds can cost anywhere from $286 to $26,186 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 0.1%.Compare 90,182 verified listings across 12 retailers in the tables below.

Market Insights

Last updated: 2026-02-28

1.5 Carat Lab Grown Diamond Market Overview

CaratRadar currently tracks 90,182 verified 1.5-carat lab grown diamonds listed across 12 online retailers. Prices in this segment range from $286 to $26,186, with an average asking price of $735 and a median of $640.

The price spread of $25,901 (98.9% 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.

90,182 diamonds tracked in this segment
Price range: $286 to $26,186
Average price: $735
Median price: $640
Available across 12 retailers
Savings potential: up to 98.9%

Price Range Overview

As of Feb 28, 2026

Spread $25,901

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

$286$26,186

Tracked

90,182

Lowest

$286

Average

$735

Median

$640

Highest

$26,186

Price History

Price Comparison Matrix

1.5 Carat Lab Grown Diamond Prices by Shape

Shape-level averages for this carat and type. Open each shape page for full market detail.

Shape	Average Price	Listings	Page
Oval	$773	22,567	View
Round	$783	19,560	View
Emerald	$662	7,574	View
Radiant	$642	7,259	View
Pear	$710	6,660	View
Cushion	$654	5,093	View
Princess	$684	4,350	View
Heart	$692	2,293	View
Marquise	$915	1,790	View
Asscher	$644	1,530	View
Antique	$1,155	9	View

Live Listings

See all listings

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

IGI

Save 68.6%

1.45ct | Antique | D | VVS1 | Ideal

From $938

Compare at $2,990

3 stores

IGI

Save 73.6%

1.46ct | Antique | E | VVS1 | Ideal

From $610

Compare at $2,310

4 stores

IGI

Save 70.9%

1.46ct | Antique | E | VVS2 | Ideal

From $862

Compare at $2,960

3 stores

GCAL

Save 57.3%

1.47ct | Antique | E | VS1 | Excellent

From $1,772

Compare at $4,150

2 stores

GCAL

Save 57.3%

1.48ct | Antique | E | VS1 | Excellent

From $1,783

Compare at $4,180

2 stores

GCAL

Save 63.8%

1.5ct | Antique | E | VVS2 | Very Good

From $2,340

Compare at $6,470

2 stores

IGI

Save 82.1%

1.52ct | Antique | D | VVS1 | Ideal

From $778

Compare at $4,340

2 stores

IGI

Save 81.8%

1.52ct | Antique | D | VVS2 | Ideal

From $670

Compare at $3,690

3 stores

IGI

Save 80.4%

1.53ct | Antique | E | VVS2 | Ideal

From $646

Compare at $3,290

3 stores

IGI

Save 79%

1.55ct | Antique | E | VVS1 | Ideal

From $775

Compare at $3,680

2 stores

IGI

Save 75.5%

1.55ct | Antique | D | VVS2 | Ideal

From $948

Compare at $3,870

2 stores

IGI

Save 78.9%

1.55ct | Antique | E | VVS2 | Ideal

From $651

Compare at $3,090

3 stores

IGI

Save 78.8%

1.45ct | Asscher | D | VVS2 | Ideal

From $478

Compare at $2,250

6 stores

GIA

Save 75.3%

1.45ct | Asscher | D | VVS2 | Excellent

From $786

Compare at $3,180

5 stores

IGI

Save 74.5%

1.45ct | Asscher | D | VS1 | Ideal

From $751

Compare at $2,940

1.45ct | Asscher | E | VS2 | Ideal

From $587

Compare at $1,016

4 stores

IGI

Save 81.6%

1.45ct | Asscher | D | VS1 | Ideal

From $546

Compare at $2,970

6 stores

IGI

Save 74.5%

1.45ct | Asscher | D | VS1 | Ideal

From $751

Compare at $2,940

2 stores

IGI

Save 56.4%

1.45ct | Asscher | D | VS1 | Excellent

From $689

Compare at $1,580

2 stores

IGI

Save 65.5%

1.45ct | Asscher | E | VVS2 | Ideal

From $638

Compare at $1,850

4 stores

IGI

Save 78%

1.45ct | Asscher | D | VVS2 | Ideal

From $475

Compare at $2,160

5 stores

IGI

Save 75.9%

1.45ct | Asscher | D | VS1 | Ideal

From $549

Compare at $2,280

6 stores

GIA

Save 76.8%

1.45ct | Asscher | D | VS1 | Excellent

From $718

Compare at $3,090

5 stores

GIA

Save 75.3%

1.45ct | Asscher | D | VVS2 | Excellent

From $786

Compare at $3,180

5 stores

IGI

Save 73%

1.45ct | Asscher | F | VS2 | Very Good

From $478

Compare at $1,770

5 stores

IGI

Save 56.7%

1.45ct | Asscher | D | VVS2 | Ideal

From $529

Compare at $1,221

2 stores

IGI

Save 65.6%

1.45ct | Asscher | F | VS1 | Ideal

From $441

Compare at $1,280

5 stores

IGI

Save 53.1%

1.45ct | Asscher | D | VS1 | Ideal

From $527

Compare at $1,123

5 stores

IGI

Save 85%

1.45ct | Asscher | D | IF | Very Good

From $606

Compare at $4,050

4 stores

IGI

Save 80.1%

1.45ct | Asscher | D | VVS2 | Ideal

From $556

Compare at $2,790

5 stores

IGI

Save 73.7%

1.45ct | Asscher | E | VS1 | Ideal

From $528

Compare at $2,010

4 stores

IGI

Save 76.3%

1.45ct | Asscher | E | VVS1 | Ideal

From $525

Compare at $2,210

5 stores

IGI

Save 53%

1.45ct | Asscher | E | VS1 | Ideal

From $435

Compare at $925

2 stores

IGI

Save 79%

1.45ct | Asscher | D | VS1 | Very Good

From $478

Compare at $2,280

3 stores

IGI

Save 79.1%

1.45ct | Asscher | D | VVS1 | Ideal

From $533

Compare at $2,550

5 stores

GIA

Save 75.3%

1.45ct | Asscher | D | VVS2 | Ideal

From $786

Compare at $3,180

3 stores

IGI

Save 76.9%

1.45ct | Asscher | E | VS1 | Ideal

From $515

Compare at $2,230

6 stores

IGI

Save 79.8%

1.45ct | Asscher | E | VS1 | Ideal

From $429

Compare at $2,120

3 stores

IGI

Save 70.4%

1.45ct | Asscher | E | VVS2 | Ideal

From $491

Compare at $1,660

6 stores

IGI

Save 57.2%

1.45ct | Asscher | E | VVS2 | Ideal

From $478

Compare at $1,115

2 stores

IGI

Save 73.9%

1.46ct | Asscher | F | SI1 | Ideal

From $562

Compare at $2,150

5 stores

IGI

Save 79.5%

1.46ct | Asscher | D | VVS2 | Ideal

From $479

Compare at $2,340

6 stores

IGI

Save 42.1%

1.46ct | Asscher | E | VS1 | Excellent

From $1,129

Compare at $1,950

2 stores

IGI

Save 72.6%

1.46ct | Asscher | F | VS1 | Very Good

From $518

Compare at $1,890

3 stores

IGI

Save 68.2%

1.46ct | Asscher | E | VS1 | Ideal

From $642

Compare at $2,020

3 stores

IGI

Save 76.4%

1.46ct | Asscher | D | VVS2 | Ideal

From $662

Compare at $2,810

4 stores

IGI

Save 82.8%

1.46ct | Asscher | D | VVS2 | Excellent

From $560

Compare at $3,260

3 stores

IGI

Save 57.1%

1.46ct | Asscher | E | VVS2 | Ideal

From $481

Compare at $1,120

2 stores

IGI

Save 60%

1.46ct | Asscher | D | VS1 | Very Good

From $483

Compare at $1,207

4 stores

IGI

Save 69.7%

1.46ct | Asscher | D | VVS1 | Ideal

From $870

Compare at $2,870

4 stores

Entry pricing in this category starts around $286.

See all listings

What to Know When Shopping for 1.5 Carat Lab Grown Diamonds

Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $25,901 or more.
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.
The median price of $640 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
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.
Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.

Frequently Asked Questions

We currently track 90,182 comparable stones in this segment. Prices start around $286 and go up to $26,186.

Based on the latest market data, the average asking price is about $735 with a median around $640.

The observed spread is roughly $25,901 across tracked listings, which is about 98.9% 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 $640, 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 12 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 $25,901 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.

1.5 Carat Oval Lab Grown Diamond Prices

1.5 Carat Round Lab Grown Diamond Prices

1.5 Carat Emerald Lab Grown Diamond Prices

1.5 Carat Radiant Lab Grown Diamond Prices

1.5 Carat Pear Lab Grown Diamond Prices

1.5 Carat Cushion Lab Grown Diamond Prices

1.5 Carat Princess Lab Grown Diamond Prices

1.5 Carat Heart Lab Grown Diamond Prices

1.5 Carat Marquise Lab Grown Diamond Prices

1.5 Carat Asscher Lab Grown Diamond Prices

Tools and Guides

Browse lab grown diamonds Use the diamond price calculator Compare natural vs lab prices Read the diamond buying guide Lab grown vs natural guide

Tracking Lab Grown inventory for 1.5 carat all-shape diamonds.