Cushion|Lab Grown|IGI

11.45ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG618439643

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG618439643

Diamond specifications and retailer prices

From $3,594 NZD

£1,592 GBP

As of November 2, 2026

Save $29,463 NZD (89%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $33,058 NZD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 11.45ct lab-grown cushion diamond

This 11.45ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618439643 or 618439643. Listed at 19 retailers as of November 2, 2026, with prices from $3,594 to $33,058, a $29,463 spread on the same certified stone. Brilliant Earth lists it at $33,058. 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

11.45

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38°

Pavilion angle31.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG618439643

Dimensions12.43 × 12.29 × 7.97 mm

L/W Ratio1.01

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG618439643

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: Nov 2

Current: $33,058 NZD|Low: $3,594 NZD|High: $34,071 NZD|Avg: $8,959 NZD|+10.5%

Brilliant Earth

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

November 2, 2026

Retailer 8$3,594 NZD

Retailer 3$4,319 NZD

Retailer 6$4,475 NZD

Retailer 15$4,772 NZD

Retailer 7$5,408 NZD

Retailer 9$6,109 NZD

Retailer 13$6,398 NZD

Retailer 2$6,444 NZD

Retailer 11$6,754 NZD

Retailer 12$6,929 NZD

Retailer 10$8,292 NZD

Retailer 14$10,673 NZD

Retailer 5$11,951 NZD

Retailer 4$12,681 NZD

Brilliant Earth$33,058 NZD

42 data points across 15 retailers

19 retailers$3,594 NZD to $33,058 NZD

Cheapest Retailer

$3,594 NZD

£1,592 GBP

Retailer 2

$4,319 NZD

$2,430 USD

View

Final sale: no returns

Retailer 3

$4,475 NZD

$2,518 USD

View

Price last confirmed 22 days ago

Retailer 4

$4,772 NZD

$2,685 USD

View

Retailer 5

$5,408 NZD

$3,043 USD

View

Retailer 6

$6,109 NZD

£2,707 GBP

View

Retailer 7

$6,398 NZD

$3,600 USD

View

Retailer 8

$6,444 NZD

$3,626 USD

View

Retailer 9

$6,754 NZD

€3,619 EUR

View

Retailer 10

$6,929 NZD

ZAR 62,979 ZAR

View

Retailer 11

$8,292 NZD

A$7,178 AUD

View

B+

Retailer 12

$8,505 NZD

£3,768 GBP

View

B+

Retailer 13

$10,673 NZD

$6,005 USD

View

B+

Retailer 14

$11,103 NZD

$6,247 USD

View

B+

Retailer 15

$11,951 NZD

$6,724 USD

View

B+

Retailer 16

$12,681 NZD

$7,135 USD

View

Retailer 17

$13,776 NZD

$7,751 USD

View

Retailer 18

$15,645 NZD

$8,803 USD

View

Most Expensive

Brilliant Earth

10794074A · Nov 2

$33,058 NZD

$18,600 USD

View

18 more retailers have this diamond

Prices start from $3,594 NZDSave up to $29,463 NZD

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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