Marquise|Lab Grown|IGI

5.09ct I VS1 Marquise Lab Grown Diamond

ID • I/VS1 • IGI LG680519605

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG680519605

Diamond specifications and retailer prices

From $7,226 SGD

$5,650 USD

As of November 2, 2026

18 retailers carry this diamond

Most expensive: $7,226 SGD at Brilliant Earth

View at Brilliant Earth

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG680519605 or 680519605. Listed at 18 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

5.09

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.1°

Pavilion angle37.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG680519605

Dimensions18.31 × 9.00 × 5.30 mm

L/W Ratio2.03

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 LG680519605

Side View

Caratlytics Score

How it works →

Good

Decent quality, room for better deals

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: $7,226 SGD|Low: $968 SGD|High: $7,443 SGD|Avg: $2,595 SGD|-2.9%

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

October 20, 2026

Retailer 18$1,009 SGD

Retailer 4$1,097 SGD

Retailer 6$1,129 SGD

Retailer 5$1,170 SGD

Retailer 19$1,170 SGD

Retailer 2$1,316 SGD

Retailer 16$1,394 SGD

Retailer 8$1,654 SGD

Retailer 17$1,767 SGD

Retailer 13$1,769 SGD

Retailer 10$2,310 SGD

Retailer 12$2,351 SGD

Retailer 15$2,782 SGD

Retailer 3$3,289 SGD

Retailer 9$3,625 SGD

Retailer 7$3,934 SGD

Retailer 14$4,408 SGD

Retailer 11$4,462 SGD

Brilliant Earth$7,226 SGD

31 data points across 19 retailers

18 retailers

Retailer 1

$1,009 SGD

$789 USD

Price last confirmed 14 days ago

Retailer 2

$1,097 SGD

$858 USD

View

Price last confirmed 18 days ago

Retailer 3

$1,170 SGD

$915 USD

View

Price last confirmed 16 days ago

Retailer 4

$1,170 SGD

$915 USD

View

Price last confirmed 14 days ago

Retailer 5

$1,359 SGD

HK$8,300 HKD

View

Price last confirmed 59 days ago

Retailer 6

$1,394 SGD

$1,090 USD

View

Price last confirmed 13 days ago

Retailer 7

$1,654 SGD

$1,293 USD

View

Price last confirmed 14 days ago

Retailer 8

$1,767 SGD

$1,382 USD

View

Price last confirmed 15 days ago

Retailer 9

$2,310 SGD

$1,806 USD

View

Price last confirmed 14 days ago

Retailer 10

$2,351 SGD

ZAR 29,694 ZAR

View

Price last confirmed 14 days ago

Retailer 11

$2,782 SGD

$2,175 USD

View

Price last confirmed 14 days ago

Retailer 12

$3,289 SGD

$2,572 USD

View

Price last confirmed 14 days ago

Retailer 13

$3,625 SGD

£2,232 GBP

View

Price last confirmed 14 days ago

Retailer 14

$3,934 SGD

View

Price last confirmed 14 days ago

Retailer 15

$4,044 SGD

$3,162 USD

View

Price last confirmed 13 days ago

Retailer 16

$4,408 SGD

£2,714 GBP

View

Price last confirmed 14 days ago

Retailer 17

$4,462 SGD

$3,489 USD

View

Price last confirmed 113 days ago

Most Expensive

Brilliant Earth

16475887A · Nov 2

$7,226 SGD

$5,650 USD

View

17 more retailers have this diamond

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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