Cushion|Lab Grown|IGI

6.31ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG629404672

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG629404672

Diamond specifications and retailer prices

From $2,326 CAD

£1,311 GBP

As of October 26, 2026

Save $5,428 CAD (70%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: $17,528 CAD at Queensmith · As of October 9, 2026

View at Queensmith

About this 6.31ct lab-grown cushion diamond

This 6.31ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG629404672 or 629404672. Listed at 13 retailers as of October 26, 2026, with a 233% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.31

Carat

Color

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.5°

Pavilion angle32.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG629404672

Dimensions10.44 × 9.95 × 6.69 mm

L/W Ratio1.05

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG629404672

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 26

Current: $2,326 CAD|Low: $2,130 CAD|High: $8,308 CAD|Avg: $4,492 CAD|-7.5%

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

October 26, 2026

Retailer 12$2,130 CAD

Retailer 1$2,326 CAD

Retailer 5$2,361 CAD

Retailer 4$2,424 CAD

Retailer 8$2,700 CAD

Retailer 6$3,164 CAD

Retailer 9$3,485 CAD

Retailer 7$4,229 CAD

Retailer 10$5,173 CAD

Retailer 11$5,322 CAD

Retailer 13$5,945 CAD

Retailer 3$6,777 CAD

Retailer 2$7,754 CAD

40 data points across 13 retailers

13 retailers$2,326 CAD to $7,754 CAD

Cheapest Retailer

$2,326 CAD

£1,311 GBP

Retailer 2

$2,361 CAD

$1,690 USD

View

Price last confirmed 18 days ago

Retailer 3

$2,424 CAD

$1,735 USD

View

Retailer 4

$2,700 CAD

$1,933 USD

View

Retailer 5

$3,164 CAD

£1,783 GBP

View

Retailer 6

$3,485 CAD

$2,495 USD

View

Price last confirmed 7 days ago

Retailer 7

$4,229 CAD

ZAR 48,905 ZAR

View

B+

Retailer 8

$5,173 CAD

$3,703 USD

View

B+

Retailer 9

$5,322 CAD

£3,000 GBP

View

B+

Retailer 10

$5,945 CAD

$4,256 USD

View

Retailer 11

$6,777 CAD

£3,820 GBP

View

Price last confirmed 9 days ago

Retailer 12

$7,754 CAD

$5,551 USD

View

Most Expensive

Queensmith

LG629404672 · Oct 9

$17,528 CAD

£9,880 GBP

View

Price last confirmed 21 days ago

12 more retailers have this diamond

Prices start from $2,326 CADSave up to $5,428 CAD

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.

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