7.7 Carat Cushion Lab Grown Diamond Prices Comparison

As of April 2026, 7.7 carat cushion lab grown diamonds usually range from $940 to $48,566, with an average price of $7,453.In the last month, prices for these diamonds are up 1.8%.Compare 22 verified listings across 5 retailers tracked by CaratRadar.

Market Insights
Last updated: 2026-04-14

7.7 Carat Cushion Lab Grown Diamond Market Overview

CaratRadar currently tracks 22 verified 7.7-carat cushion lab grown diamonds listed across 5 online retailers. Prices in this segment range from $940 to $48,566, with an average asking price of $7,453 and a median of $5,276.

The price spread of $47,626 (98.1% 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.

  • 22 diamonds tracked in this segment

  • Price range: $940 to $48,566

  • Average price: $7,453

  • Median price: $5,276

  • Available across 5 retailers

  • Savings potential: up to 98.1%

Price Range Overview

As of Apr 14, 2026
Spread $47,626

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

$940$48,566
Tracked

22

Lowest

$940

Average

$7,453

Median

$5,276

Highest

$48,566

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 | 7.71ct | Cushion | D | VVS2 | Ideal
Save 79.9%

IGI | 7.71ct | Cushion | D | VVS2 | Ideal

From $4,590

Compare at $22,830

5 stores
IGI | 7.71ct | Cushion | E | VVS2 | Ideal
Save 85%

IGI | 7.71ct | Cushion | E | VVS2 | Ideal

From $2,900

Compare at $19,360

6 stores
IGI | 7.72ct | Cushion | G | VS1 | Ideal
Save 83%

IGI | 7.72ct | Cushion | G | VS1 | Ideal

From $2,326

Compare at $13,710

4 stores
IGI | 7.72ct | Cushion | G | VS2 | Ideal
Save 82.4%

IGI | 7.72ct | Cushion | G | VS2 | Ideal

From $2,221

Compare at $12,620

4 stores
IGI | 7.72ct | Cushion | FANCY | VS1 | Very Good
Save 61.2%

IGI | 7.72ct | Cushion | FANCY | VS1 | Very Good

From $9,673

Compare at $24,954

2 stores
GIA | 7.73ct | Cushion | G | VS2 | Very Good
Save 69.6%

GIA | 7.73ct | Cushion | G | VS2 | Very Good

From $4,663

Compare at $15,348

3 stores
IGI | 7.73ct | Cushion | E | VVS2 | Ideal
Save 78%

IGI | 7.73ct | Cushion | E | VVS2 | Ideal

From $4,287

Compare at $19,460

4 stores
IGI | 7.73ct | Cushion | E | VVS2 | Good
Save 76.5%

IGI | 7.73ct | Cushion | E | VVS2 | Good

From $4,580

Compare at $19,460

6 stores
IGI | 7.73ct | Cushion | F | VVS2 | Ideal
Save 80.7%

IGI | 7.73ct | Cushion | F | VVS2 | Ideal

From $1,937

Compare at $10,040

5 stores
IGI | 7.74ct | Cushion | D | VVS2 | Excellent
Save 67.9%

IGI | 7.74ct | Cushion | D | VVS2 | Excellent

From $15,794

Compare at $49,260

2 stores
IGI | 7.74ct | Cushion | E | VVS2 | Ideal
Save 71.4%

IGI | 7.74ct | Cushion | E | VVS2 | Ideal

From $2,918

Compare at $10,190

3 stores
IGI | 7.75ct | Cushion | F | VS2 | Ideal
Save 76.1%

IGI | 7.75ct | Cushion | F | VS2 | Ideal

From $4,315

Compare at $18,050

6 stores
IGI | 7.75ct | Cushion | F | VS2 | Ideal
Save 68.9%

IGI | 7.75ct | Cushion | F | VS2 | Ideal

From $1,833

Compare at $5,890

2 stores
IGI | 7.75ct | Cushion | FANCY | VS1 | Very Good
Save 35.2%

IGI | 7.75ct | Cushion | FANCY | VS1 | Very Good

From $5,514

Compare at $8,507

2 stores
IGI | 7.75ct | Cushion | F | VVS2 | Very Good
Save 77.1%

IGI | 7.75ct | Cushion | F | VVS2 | Very Good

From $2,186

Compare at $9,560

3 stores
IGI | 7.75ct | Cushion | E | VVS2 | Very Good
Save 86.9%

IGI | 7.75ct | Cushion | E | VVS2 | Very Good

From $2,560

Compare at $19,560

3 stores
IGI | 7.76ct | Cushion | E | VVS2 | Ideal
Save 78%

IGI | 7.76ct | Cushion | E | VVS2 | Ideal

From $4,303

Compare at $19,530

4 stores
IGI | 7.76ct | Cushion | E | VVS2 | Ideal
Save 85.8%

IGI | 7.76ct | Cushion | E | VVS2 | Ideal

From $2,788

Compare at $19,600

5 stores
IGI | 7.77ct | Cushion | G | VVS2 | Ideal
Save 83.5%

IGI | 7.77ct | Cushion | G | VVS2 | Ideal

From $2,553

Compare at $15,480

4 stores
GIA | 7.78ct | Cushion | F | IF | Excellent
Save 70.8%

GIA | 7.78ct | Cushion | F | IF | Excellent

From $27,670

Compare at $94,630

4 stores
IGI | 7.78ct | Cushion | G | VVS2 | Ideal
Save 77.1%

IGI | 7.78ct | Cushion | G | VVS2 | Ideal

From $3,848

Compare at $16,790

6 stores
IGI | 7.79ct | Cushion | G | VVS2 | Ideal
Save 77.1%

IGI | 7.79ct | Cushion | G | VVS2 | Ideal

From $3,853

Compare at $16,810

6 stores

Entry pricing in this category starts around $940.

What to Know When Shopping for 7.7 Carat Cushion Lab Grown Diamonds

  1. Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $47,626 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 $5,276 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. 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 22 comparable stones in this segment. Prices start around $940 and go up to $48,566.

Based on the latest market data, the average asking price is about $7,453 with a median around $5,276.

The observed spread is roughly $47,626 across tracked listings, which is about 98.1% 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 $5,276, 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 5 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 $47,626 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 7.7 carat Cushion diamonds.