Cushion|Lab Grown|IGI

6.51ct E VS2 Cushion Lab Grown Diamond

EX • E/VS2 • IGI LG839647750

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647750

Diamond specifications and retailer prices

From $1,021 USD

As of October 27, 2026

Save $5,299 USD (84%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $6,320 USD at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 6.51ct lab-grown cushion diamond

This 6.51ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647750 or 839647750. Listed at 16 retailers as of October 27, 2026, with prices from $1,021 to $6,320, a $5,299 spread on the same certified stone. Brilliant Earth lists it at $6,320. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.51

Carat

Color

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.1°

Pavilion angle33.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG839647750

Dimensions12.63 × 9.57 × 6.30 mm

L/W Ratio1.32

Girdle conditionFaceted

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG839647750

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27

Current: $1,602 USD|Low: $1,021 USD|High: $5,865 USD|Avg: $2,937 USD|-0.8%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

October 29, 2026

Retailer 3$1,021 USD

Retailer 12$1,137 USD

Retailer 8$1,216 USD

Retailer 11$1,275 USD

Retailer 1$1,602 USD

Retailer 13$1,620 USD

Retailer 4$1,697 USD

Retailer 2$2,926 USD

Retailer 7$3,191 USD

Retailer 15$3,311 USD

Retailer 10$3,513 USD

Retailer 14$3,594 USD

Retailer 6$4,905 USD

Retailer 9$5,020 USD

Retailer 5$5,835 USD

25 data points across 15 retailers

16 retailers$1,021 USD to $6,320 USD

Cheapest Retailer

$1,021 USD

Final sale: no returns

Retailer 2

$1,137 USD

£895 GBP

View

Retailer 3

$1,216 USD

HK$9,500 HKD

View

Retailer 4

$1,275 USD

View

Retailer 5

$1,602 USD

€1,526 EUR

View

Retailer 6

$1,620 USD

£1,275 GBP

View

B+

Retailer 7

$1,697 USD

View

Retailer 8

$2,926 USD

£2,304 GBP

View

B+

Retailer 9

$3,191 USD

View

B+

Retailer 10

$3,311 USD

View

B+

Retailer 11

$3,513 USD

SGD 4,747 SGD

View

B+

Retailer 12

$3,594 USD

£2,830 GBP

View

B+

Retailer 13

$4,905 USD

A$7,546 AUD

View

Price last confirmed 20 days ago

B+

Retailer 14

$5,020 USD

View

Retailer 15

$5,835 USD

View

Price last confirmed 10 days ago

Most Expensive

Brilliant Earth

21808577A · Oct 28

$6,320 USD

View

15 more retailers have this diamond

Prices start from $1,021 USDSave up to $5,299 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

Similar diamonds

6.51ct Cushion

$1,021 USD