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 €500 EUR

£442 GBP

As of October 27, 2026

Save €3,351 EUR (87%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: €3,852 EUR 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 €500 to €3,852, a €3,351 spread on the same certified stone. Brilliant Earth lists it at €3,852. 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: €3,852 EUR|Low: €499 EUR|High: €5,572 EUR|Avg: €1,698 EUR|-30.9%

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

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

Retailer 21

October 28, 2026

Retailer 17€500 EUR

Retailer 7€539 EUR

Retailer 3€650 EUR

Retailer 15€718 EUR

Retailer 16€869 EUR

Retailer 8€884 EUR

Retailer 9€923 EUR

Retailer 18€925 EUR

Retailer 21€1,178 EUR

Retailer 20€1,207 EUR

Retailer 6€1,337 EUR

Retailer 4€1,417 EUR

Retailer 13€1,866 EUR

Retailer 5€1,924 EUR

Retailer 10€1,938 EUR

Retailer 11€1,940 EUR

Retailer 19€2,497 EUR

Retailer 2€2,591 EUR

Retailer 14€2,709 EUR

Retailer 12€2,746 EUR

Brilliant Earth€3,852 EUR

25 data points across 21 retailers

21 retailers€500 EUR to €3,852 EUR

Cheapest Retailer

€500 EUR

£442 GBP

Retailer 2

€650 EUR

HK$5,700 HKD

View

Retailer 3

€718 EUR

$805 USD

View

Price last confirmed 5 days ago

Retailer 4

€869 EUR

View

Retailer 5

€884 EUR

$991 USD

View

Price last confirmed 7 days ago

Retailer 6

€923 EUR

$1,035 USD

View

Price last confirmed 7 days ago

Retailer 7

€925 EUR

£817 GBP

View

Retailer 8

€1,178 EUR

ZAR 21,352 ZAR

View

Price last confirmed 9 days ago

Retailer 9

€1,207 EUR

A$2,082 AUD

View

Price last confirmed 8 days ago

Retailer 10

€1,337 EUR

$1,500 USD

View

Price last confirmed 7 days ago

Retailer 11

€1,417 EUR

$1,589 USD

View

B+

Retailer 12

€1,866 EUR

SGD 2,829 SGD

View

Retailer 13

€1,902 EUR

£1,680 GBP

View

Price last confirmed 25 days ago

Retailer 14

€1,924 EUR

$2,158 USD

View

Price last confirmed 7 days ago

Retailer 15

€1,938 EUR

$2,174 USD

View

Price last confirmed 8 days ago

B+

Retailer 16

€1,940 EUR

$2,176 USD

View

Retailer 17

€2,497 EUR

£2,205 GBP

View

Price last confirmed 8 days ago

B+

Retailer 18

€2,591 EUR

$2,906 USD

View

Retailer 19

€2,709 EUR

A$4,675 AUD

View

Price last confirmed 25 days ago

Retailer 20

€2,746 EUR

$3,080 USD

View

Price last confirmed 19 days ago

Most Expensive

Brilliant Earth

21461864A · Oct 28

€3,852 EUR

$4,320 USD

View

20 more retailers have this diamond

Prices start from €500 EURSave up to €3,351 EUR

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

4.09ct Cushion

€500 EUR