Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG700585208

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG700585208

Diamond specifications and retailer prices

From $1,601 SGD

$1,252 USD

As of November 2, 2026

13 retailers carry this diamond

Most expensive: $9,639 SGD at Brilliant Earth · As of October 17, 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 LG700585208 or 700585208. Listed at 13 retailers as of November 2, 2026. 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

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.6°

Pavilion angle37.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG700585208

Dimensions8.40 × 8.40 × 5.56 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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG700585208

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: $9,639 SGD|Low: $1,236 SGD|High: $10,419 SGD|Avg: $3,740 SGD|-7.5%

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

Retailer 16

Retailer 17

Retailer 18

October 16, 2026

Retailer 7$1,236 SGD

Retailer 14$1,282 SGD

Retailer 13$1,540 SGD

Retailer 4$1,667 SGD

Retailer 3$1,804 SGD

Retailer 18$1,808 SGD

Retailer 8$1,875 SGD

Retailer 2$2,216 SGD

Retailer 12$2,985 SGD

Retailer 17$3,036 SGD

Retailer 9$3,916 SGD

Retailer 6$4,004 SGD

Retailer 16$4,010 SGD

Retailer 15$4,177 SGD

Retailer 11$4,851 SGD

Retailer 10$5,042 SGD

Brilliant Earth$9,639 SGD

Retailer 5$10,304 SGD

23 data points across 18 retailers

13 retailers

Retailer 1

$1,282 SGD

$1,003 USD

Price last confirmed 20 days ago

Retailer 2

$1,601 SGD

$1,252 USD

View

Retailer 3

$1,808 SGD

$1,414 USD

View

Price last confirmed 19 days ago

Retailer 4

$1,875 SGD

$1,467 USD

View

Price last confirmed 18 days ago

Retailer 5

$2,216 SGD

£1,365 GBP

View

Price last confirmed 17 days ago

Retailer 6

$2,985 SGD

ZAR 37,715 ZAR

View

Price last confirmed 18 days ago

Retailer 7

$3,916 SGD

£2,412 GBP

View

Price last confirmed 18 days ago

Retailer 8

$4,004 SGD

$3,132 USD

View

Price last confirmed 19 days ago

Retailer 9

$4,010 SGD

$3,137 USD

View

Price last confirmed 18 days ago

Retailer 10

$4,177 SGD

A$5,027 AUD

View

Price last confirmed 25 days ago

Retailer 11

$4,851 SGD

£2,988 GBP

View

Price last confirmed 18 days ago

Retailer 12

$5,042 SGD

$3,944 USD

View

Price last confirmed 18 days ago

Most Expensive

Brilliant Earth

18873985A · Oct 17

$9,639 SGD

$7,540 USD

View

Price last confirmed 16 days ago

12 more retailers have this diamond

Prices start from $1,601 SGD

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

$1,601 SGD