Cushion|Lab Grown|IGI

6.37ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG645455952

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG645455952

Diamond specifications and retailer prices

From $3,441 AUD

$2,417 USD

As of October 25, 2026

Save $14,297 AUD (81%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $22,080 AUD at Brilliant Earth · As of October 1, 2026

View at Brilliant Earth

About this 6.37ct lab-grown cushion diamond

This 6.37ct 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 LG645455952 or 645455952. Listed at 22 retailers as of October 25, 2026, with a 416% 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

6.37

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.3°

Pavilion angle31.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG645455952

Dimensions10.43 × 10.38 × 6.56 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG645455952

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 25

Current: $4,574 AUD|Low: $2,886 AUD|High: $11,318 AUD|Avg: $5,855 AUD|+1.0%

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 24, 2026

Retailer 6$2,886 AUD

Retailer 15$2,991 AUD

Retailer 14$3,232 AUD

Retailer 5$3,441 AUD

Retailer 1$4,574 AUD

Retailer 3$4,719 AUD

Retailer 13$4,943 AUD

Retailer 8$4,963 AUD

Retailer 9$6,127 AUD

Retailer 7$6,270 AUD

Retailer 10$6,317 AUD

Retailer 11$8,819 AUD

Retailer 2$8,937 AUD

Retailer 12$9,477 AUD

Retailer 4$11,318 AUD

37 data points across 15 retailers

22 retailers$3,441 AUD to $17,738 AUD

Retailer 1

$2,991 AUD

$2,101 USD

Price last confirmed 18 days ago

Retailer 2

$3,232 AUD

$2,270 USD

View

Price last confirmed 8 days ago

Retailer 3

$3,441 AUD

$2,417 USD

View

Retailer 4

$3,918 AUD

HK$21,500 HKD

View

Price last confirmed 8 days ago

Retailer 5

$4,291 AUD

$3,014 USD

View

Price last confirmed 7 days ago

Retailer 6

$4,574 AUD

£2,530 GBP

View

Price last confirmed 7 days ago

Retailer 7

$4,719 AUD

$3,315 USD

View

Price last confirmed 8 days ago

Retailer 8

$4,943 AUD

$3,472 USD

View

Price last confirmed 8 days ago

Retailer 9

$4,963 AUD

€3,320 EUR

View

Price last confirmed 8 days ago

Retailer 10

$6,127 AUD

View

Price last confirmed 9 days ago

Retailer 11

$6,270 AUD

£3,468 GBP

View

Price last confirmed 7 days ago

Retailer 12

$6,317 AUD

ZAR 71,690 ZAR

View

Price last confirmed 11 days ago

Retailer 13

$8,497 AUD

$5,969 USD

View

Price last confirmed 8 days ago

Retailer 14

$8,819 AUD

$6,195 USD

View

Price last confirmed 10 days ago

Retailer 15

$8,937 AUD

View

Price last confirmed 22 days ago

Retailer 16

$9,477 AUD

£5,242 GBP

View

Price last confirmed 10 days ago

Retailer 17

$10,556 AUD

$7,415 USD

View

Retailer 18

$11,318 AUD

SGD 10,744 SGD

View

Price last confirmed 7 days ago

Retailer 19

$11,552 AUD

$8,115 USD

View

Price last confirmed 9 days ago

Retailer 20

$17,738 AUD

$12,460 USD

View

Retailer 21

$20,215 AUD

$14,200 USD

View

Price last confirmed 8 days ago

Most Expensive

Brilliant Earth

14102592Y · Oct 1

$22,080 AUD

$15,510 USD

View

Price last confirmed 30 days ago

21 more retailers have this diamond

Prices start from $3,441 AUDSave up to $14,297 AUD

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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