1.5 Carat Princess Natural Diamond Prices Comparison

As of May 2026, 1.5 carat princess natural diamonds usually range from $524 to $18,055, with an average price of $6,644.In the last month, prices for these diamonds are flat -0%.Compare 1,703 verified listings across 10 retailers tracked by CaratRadar.

Market Insights
Last updated: 2026-05-29

1.5 Carat Princess Natural Diamond Market Overview

CaratRadar currently tracks 1,703 verified 1.5-carat princess natural diamonds listed across 10 online retailers. Prices in this segment range from $524 to $18,055, with an average asking price of $6,644 and a median of $6,126.

The price spread of $17,531 (97.1% 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.

  • 1,703 diamonds tracked in this segment

  • Price range: $524 to $18,055

  • Average price: $6,644

  • Median price: $6,126

  • Available across 10 retailers

  • Savings potential: up to 97.1%

Price Range Overview

As of May 29, 2026
Spread $17,531

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

$524$18,055
Tracked

1,703

Lowest

$524

Average

$6,644

Median

$6,126

Highest

$18,055

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 | 1.5ct | Princess | K | VVS1 | Very Good
Save 25.4%

IGI | 1.5ct | Princess | K | VVS1 | Very Good

From $1,875

Compare at $2,513

3 stores
IGI | 1.5ct | Princess | K | SI1 | Very Good
Save 21.6%

IGI | 1.5ct | Princess | K | SI1 | Very Good

From $1,930

Compare at $2,461

2 stores
IGI | 1.5ct | Princess | K | SI1 | Very Good
Save 21.6%

IGI | 1.5ct | Princess | K | SI1 | Very Good

From $1,930

Compare at $2,462

2 stores
IGI | 1.53ct | Princess | K | SI1 | Very Good
Save 21.7%

IGI | 1.53ct | Princess | K | SI1 | Very Good

From $1,965

Compare at $2,509

2 stores
IGI | 1.5ct | Princess | K | VVS2 | Very Good
Save 25%

IGI | 1.5ct | Princess | K | VVS2 | Very Good

From $1,975

Compare at $2,634

3 stores
IGI | 1.5ct | Princess | K | VVS2 | Ideal
Save 25%

IGI | 1.5ct | Princess | K | VVS2 | Ideal

From $1,975

Compare at $2,634

3 stores
IGI | 1.51ct | Princess | K | VVS1 | Very Good
Save 27%

IGI | 1.51ct | Princess | K | VVS1 | Very Good

From $1,980

Compare at $2,712

3 stores
IGI | 1.5ct | Princess | J | VS1 | Very Good
Save 27.5%

IGI | 1.5ct | Princess | J | VS1 | Very Good

From $2,085

Compare at $2,876

3 stores
IGI | 1.51ct | Princess | K | VS2 | Very Good
Save 17.6%

IGI | 1.51ct | Princess | K | VS2 | Very Good

From $2,090

Compare at $2,536

3 stores
GIA | 1.51ct | Princess | L | VS2 | Excellent
Save 32.5%

GIA | 1.51ct | Princess | L | VS2 | Excellent

From $2,120

Compare at $3,141

3 stores
GIA | 1.5ct | Princess | L | SI2 | Very Good
Save 33.1%

GIA | 1.5ct | Princess | L | SI2 | Very Good

From $2,173

Compare at $3,248

2 stores
GIA | 1.5ct | Princess | K | SI2 | Good

GIA | 1.5ct | Princess | K | SI2 | Good

From $2,182

Compare at $2,283

2 stores
IGI | 1.5ct | Princess | J | VVS2 | Very Good
Save 27.6%

IGI | 1.5ct | Princess | J | VVS2 | Very Good

From $2,195

Compare at $3,032

3 stores
IGI | 1.5ct | Princess | J | VVS2 | Very Good
Save 27.6%

IGI | 1.5ct | Princess | J | VVS2 | Very Good

From $2,195

Compare at $3,032

3 stores
IGI | 1.51ct | Princess | J | VVS2 | Very Good
Save 27.6%

IGI | 1.51ct | Princess | J | VVS2 | Very Good

From $2,210

Compare at $3,052

3 stores
IGI | 1.5ct | Princess | J | VS2 | Ideal
Save 23.6%

IGI | 1.5ct | Princess | J | VS2 | Ideal

From $2,275

Compare at $2,978

3 stores
GIA | 1.5ct | Princess | K | SI1 | Excellent
Save 14.9%

GIA | 1.5ct | Princess | K | SI1 | Excellent

From $2,281

Compare at $2,682

2 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent
Save 10.7%

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,291

Compare at $2,567

2 stores
GIA | 1.6ct | Princess | L | SI1 | Excellent
Save 32.5%

GIA | 1.6ct | Princess | L | SI1 | Excellent

From $2,300

Compare at $3,407

3 stores
IGI | 1.5ct | Princess | J | VS1 | Ideal
Save 23.7%

IGI | 1.5ct | Princess | J | VS1 | Ideal

From $2,300

Compare at $3,012

3 stores
IGI | 1.51ct | Princess | J | VVS2 | Very Good
Save 27.9%

IGI | 1.51ct | Princess | J | VVS2 | Very Good

From $2,305

Compare at $3,196

3 stores
IGI | 1.51ct | Princess | J | VVS2 | Ideal
Save 27.9%

IGI | 1.51ct | Princess | J | VVS2 | Ideal

From $2,305

Compare at $3,196

3 stores
IGI | 1.52ct | Princess | J | VS1 | Very Good
Save 27.6%

IGI | 1.52ct | Princess | J | VS1 | Very Good

From $2,310

Compare at $3,190

3 stores
IGI | 1.5ct | Princess | J | VVS2 | Ideal
Save 27.3%

IGI | 1.5ct | Princess | J | VVS2 | Ideal

From $2,310

Compare at $3,175

3 stores
IGI | 1.51ct | Princess | J | VS1 | Very Good
Save 26.9%

IGI | 1.51ct | Princess | J | VS1 | Very Good

From $2,315

Compare at $3,169

3 stores
IGI | 1.51ct | Princess | K | SI1 | Very Good
Save 20.8%

IGI | 1.51ct | Princess | K | SI1 | Very Good

From $2,330

Compare at $2,943

2 stores
IGI | 1.51ct | Princess | K | VVS1 | Very Good
Save 17.3%

IGI | 1.51ct | Princess | K | VVS1 | Very Good

From $2,335

Compare at $2,824

2 stores
GIA | 1.53ct | Princess | K | SI1 | Excellent
Save 34%

GIA | 1.53ct | Princess | K | SI1 | Excellent

From $2,340

Compare at $3,543

4 stores
GIA | 1.51ct | Princess | K | SI2 | Excellent
Save 32.5%

GIA | 1.51ct | Princess | K | SI2 | Excellent

From $2,353

Compare at $3,486

3 stores
GIA | 1.52ct | Princess | K | SI2 | Excellent
Save 32.5%

GIA | 1.52ct | Princess | K | SI2 | Excellent

From $2,369

Compare at $3,509

3 stores
GIA | 1.53ct | Princess | L | SI1 | Very Good
Save 29.8%

GIA | 1.53ct | Princess | L | SI1 | Very Good

From $2,372

Compare at $3,377

2 stores
GIA | 1.5ct | Princess | K | VVS2 | Excellent
Save 27.4%

GIA | 1.5ct | Princess | K | VVS2 | Excellent

From $2,385

Compare at $3,287

3 stores
IGI | 1.5ct | Princess | J | VVS2 | Ideal
Save 24.4%

IGI | 1.5ct | Princess | J | VVS2 | Ideal

From $2,400

Compare at $3,175

3 stores
IGI | 1.51ct | Princess | J | VS1 | Very Good
Save 27.4%

IGI | 1.51ct | Princess | J | VS1 | Very Good

From $2,400

Compare at $3,306

3 stores
GIA | 1.5ct | Princess | K | SI1 | Excellent
Save 22.2%

GIA | 1.5ct | Princess | K | SI1 | Excellent

From $2,403

Compare at $3,087

2 stores
GIA | 1.6ct | Princess | K | SI1 | Good
Save 16.8%

GIA | 1.6ct | Princess | K | SI1 | Good

From $2,404

Compare at $2,888

5 stores
IGI | 1.5ct | Princess | I | SI2 | Ideal
Save 17.4%

IGI | 1.5ct | Princess | I | SI2 | Ideal

From $2,404

Compare at $2,910

2 stores
IGI | 1.5ct | Princess | J | VVS1 | Very Good
Save 28%

IGI | 1.5ct | Princess | J | VVS1 | Very Good

From $2,405

Compare at $3,338

3 stores
IGI | 1.5ct | Princess | J | VVS1 | Very Good
Save 28%

IGI | 1.5ct | Princess | J | VVS1 | Very Good

From $2,405

Compare at $3,338

3 stores
GIA | 1.5ct | Princess | K | SI2 | Very Good
Save 36.2%

GIA | 1.5ct | Princess | K | SI2 | Very Good

From $2,414

Compare at $3,786

3 stores
IGI | 1.51ct | Princess | J | VVS2 | Ideal
Save 27.7%

IGI | 1.51ct | Princess | J | VVS2 | Ideal

From $2,415

Compare at $3,341

3 stores
GIA | 1.51ct | Princess | K | SI2 | Excellent
Save 38.5%

GIA | 1.51ct | Princess | K | SI2 | Excellent

From $2,419

Compare at $3,935

4 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,425

Compare at $2,695

2 stores
IGI | 1.55ct | Princess | J | SI1 | Very Good
Save 20.8%

IGI | 1.55ct | Princess | J | SI1 | Very Good

From $2,425

Compare at $3,061

2 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent
Save 20.4%

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,433

Compare at $3,058

2 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent
Save 15.1%

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,434

Compare at $2,866

2 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent
Save 11.1%

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,434

Compare at $2,738

2 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent
Save 16.3%

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,434

Compare at $2,909

2 stores
GIA | 1.5ct | Princess | K | SI2 | Excellent

GIA | 1.5ct | Princess | K | SI2 | Excellent

From $2,438

Compare at $2,644

2 stores
IGI | 1.5ct | Princess | K | VS2 | Very Good
Save 14.5%

IGI | 1.5ct | Princess | K | VS2 | Very Good

From $2,439

Compare at $2,851

3 stores

Entry pricing in this category starts around $524.

What to Know When Shopping for 1.5 Carat Princess Natural Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $17,531 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 $6,126 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. Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
  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. Princess-cut diamonds are prone to chipping at the corners. Look for protective prong settings and avoid stones with visible inclusions near the edges.

Frequently Asked Questions

We currently track 1,703 comparable stones in this segment. Prices start around $524 and go up to $18,055.

Based on the latest market data, the average asking price is about $6,644 with a median around $6,126.

The observed spread is roughly $17,531 across tracked listings, which is about 97.1% 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 $6,644. The median price is $6,126, 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 10 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 $17,531 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 Natural inventory for 1.5 carat Princess diamonds.