6 Carat Cushion Natural Diamond Prices Comparison

As of July 2026, 6 carat cushion natural diamonds usually range from $2,584 to $521,193, with an average price of $123,730.In the last month, prices for these diamonds are down 2.5%.Compare 20 verified listings across 6 retailers tracked by CaratRadar.

Market Insights
Last updated: 2026-07-11

6 Carat Cushion Natural Diamond Market Overview

CaratRadar currently tracks 20 verified 6-carat cushion natural diamonds listed across 6 online retailers. Prices in this segment range from $2,584 to $521,193, with an average asking price of $123,730 and a median of $112,120.

The price spread of $518,609 (99.5% 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.

  • 20 diamonds tracked in this segment

  • Price range: $2,584 to $521,193

  • Average price: $123,730

  • Median price: $112,120

  • Available across 6 retailers

  • Savings potential: up to 99.5%

Price Range Overview

As of Jul 11, 2026
Spread $518,609

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

$2,584$521,193
Tracked

20

Lowest

$2,584

Average

$123,730

Median

$112,120

Highest

$521,193

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.

GIA | 6.01ct | Cushion | L | VS2 | Excellent

GIA | 6.01ct | Cushion | L | VS2 | Excellent

From $45,388

Compare at $47,129

2 stores
GIA | 6.01ct | Cushion | K | VS1 | Good

GIA | 6.01ct | Cushion | K | VS1 | Good

From $60,867

Compare at $61,656

2 stores
GIA | 6.01ct | Cushion | I | SI2 | Ideal
Save 34.7%

GIA | 6.01ct | Cushion | I | SI2 | Ideal

From $64,216

Compare at $98,293

5 stores
GIA | 6.03ct | Cushion | K | SI1 | Excellent
Save 30.1%

GIA | 6.03ct | Cushion | K | SI1 | Excellent

From $74,325

Compare at $106,319

3 stores
GIA | 6.02ct | Cushion | J | SI2 | Good
Save 23.3%

GIA | 6.02ct | Cushion | J | SI2 | Good

From $77,065

Compare at $100,439

2 stores
IGI | 6ct | Cushion | F | SI2 | Very Good

IGI | 6ct | Cushion | F | SI2 | Very Good

From $78,209

Compare at $85,672

2 stores
GIA | 6.06ct | Cushion | H | VVS1 | Very Good

GIA | 6.06ct | Cushion | H | VVS1 | Very Good

From $82,954

Compare at $86,307

3 stores
GIA | 6.03ct | Cushion | J | VS1 | Ideal
Save 31.4%

GIA | 6.03ct | Cushion | J | VS1 | Ideal

From $90,468

Compare at $131,790

2 stores
GIA | 6.02ct | Cushion | H | IF | Good
Save 13.7%

GIA | 6.02ct | Cushion | H | IF | Good

From $93,249

Compare at $107,992

2 stores
GIA | 6.01ct | Cushion | G | VS1 | Very Good
Save 12.2%

GIA | 6.01ct | Cushion | G | VS1 | Very Good

From $101,121

Compare at $115,140

5 stores
GIA | 6.01ct | Cushion | J | VS2 | Ideal

GIA | 6.01ct | Cushion | J | VS2 | Ideal

From $103,961

Compare at $105,290

2 stores
GIA | 6.04ct | Cushion | H | VVS2 | Very Good
Save 10.6%

GIA | 6.04ct | Cushion | H | VVS2 | Very Good

From $109,792

Compare at $122,770

4 stores
GIA | 6.07ct | Cushion | G | VS1 | Very Good
Save 15.4%

GIA | 6.07ct | Cushion | G | VS1 | Very Good

From $135,845

Compare at $160,483

2 stores
GIA | 6.07ct | Cushion | J | VVS2 | Excellent

GIA | 6.07ct | Cushion | J | VVS2 | Excellent

From $146,759

Compare at $160,326

3 stores
GIA | 6.05ct | Cushion | G | SI1 | Good

GIA | 6.05ct | Cushion | G | SI1 | Good

From $152,917

Compare at $161,366

2 stores
GIA | 6.02ct | Cushion | F | VS2 | Excellent

GIA | 6.02ct | Cushion | F | VS2 | Excellent

From $160,799

Compare at $169,682

3 stores
GIA | 6.05ct | Cushion | D | SI2 | Excellent

GIA | 6.05ct | Cushion | D | SI2 | Excellent

From $174,948

Compare at $184,611

2 stores
GIA | 6.01ct | Cushion | H | VS2 | Excellent

GIA | 6.01ct | Cushion | H | VS2 | Excellent

From $230,909

Compare at $235,882

2 stores
GIA | 6.03ct | Cushion | D | VVS2 | Good
Save 26.2%

GIA | 6.03ct | Cushion | D | VVS2 | Good

From $360,614

Compare at $488,856

2 stores
GIA | 6.01ct | Cushion | D | FL | Good
Save 23.7%

GIA | 6.01ct | Cushion | D | FL | Good

From $393,276

Compare at $515,350

3 stores

Entry pricing in this category starts around $2,584.

What to Know When Shopping for 6 Carat Cushion Natural Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $518,609 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 $112,120 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. Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.

Frequently Asked Questions

We currently track 20 comparable stones in this segment. Prices start around $2,584 and go up to $521,193.

Based on the latest market data, the average asking price is about $123,730 with a median around $112,120.

The observed spread is roughly $518,609 across tracked listings, which is about 99.5% 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 $123,730. The median price is $112,120, 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 $518,609 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.

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