Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG835610851

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG835610851

Diamond specifications and retailer prices

From $996 NZD

£442 GBP

As of October 27, 2026

Save $6,669 NZD (87%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: $7,665 NZD at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 4.09ct lab-grown cushion diamond

This 4.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG835610851 or 835610851. Listed at 21 retailers as of October 27, 2026, with prices from $996 to $7,665, a $6,669 spread on the same certified stone. Brilliant Earth lists it at $7,665. 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

4.09

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.9°

Pavilion angle33°

OriginLab Grown

Grading LabIGI

CertificateIGI LG835610851

Dimensions10.69 × 8.23 × 5.40 mm

L/W Ratio1.30

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG835610851

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: $7,665 NZD|Low: $992 NZD|High: $11,089 NZD|Avg: $3,379 NZD|-30.9%

Brilliant Earth

Retailer 2

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October 28, 2026

Retailer 17$996 NZD

Retailer 7$1,073 NZD

Retailer 3$1,295 NZD

Retailer 15$1,428 NZD

Retailer 16$1,729 NZD

Retailer 8$1,758 NZD

Retailer 9$1,836 NZD

Retailer 18$1,841 NZD

Retailer 21$2,345 NZD

Retailer 20$2,401 NZD

Retailer 6$2,661 NZD

Retailer 4$2,819 NZD

Retailer 13$3,714 NZD

Retailer 5$3,829 NZD

Retailer 10$3,857 NZD

Retailer 11$3,860 NZD

Retailer 19$4,969 NZD

Retailer 2$5,156 NZD

Retailer 14$5,392 NZD

Retailer 12$5,465 NZD

Brilliant Earth$7,665 NZD

25 data points across 21 retailers

21 retailers$996 NZD to $7,665 NZD

Cheapest Retailer

$996 NZD

£442 GBP

Retailer 2

$1,295 NZD

HK$5,700 HKD

View

Retailer 3

$1,428 NZD

$805 USD

View

Price last confirmed 5 days ago

Retailer 4

$1,729 NZD

€928 EUR

View

Retailer 5

$1,758 NZD

$991 USD

View

B+

Retailer 6

$1,836 NZD

$1,035 USD

View

Retailer 7

$1,841 NZD

£817 GBP

View

Retailer 8

$2,345 NZD

ZAR 21,352 ZAR

View

Price last confirmed 9 days ago

Retailer 9

$2,401 NZD

A$2,082 AUD

View

Price last confirmed 8 days ago

Retailer 10

$2,661 NZD

$1,500 USD

View

Price last confirmed 7 days ago

Retailer 11

$2,819 NZD

$1,589 USD

View

B+

Retailer 12

$3,714 NZD

SGD 2,829 SGD

View

Retailer 13

$3,786 NZD

£1,680 GBP

View

Price last confirmed 24 days ago

B+

Retailer 14

$3,829 NZD

$2,158 USD

View

Retailer 15

$3,857 NZD

$2,174 USD

View

Price last confirmed 8 days ago

B+

Retailer 16

$3,860 NZD

$2,176 USD

View

Retailer 17

$4,969 NZD

£2,205 GBP

View

Price last confirmed 8 days ago

B+

Retailer 18

$5,156 NZD

$2,906 USD

View

Retailer 19

$5,392 NZD

A$4,675 AUD

View

Price last confirmed 25 days ago

Retailer 20

$5,465 NZD

$3,080 USD

View

Price last confirmed 18 days ago

Most Expensive

Brilliant Earth

21461864A · Oct 28

$7,665 NZD

$4,320 USD

View

20 more retailers have this diamond

Prices start from $996 NZDSave up to $6,669 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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