Marquise|Lab Grown|IGI

1.57ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG667458721

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG667458721

Diamond specifications and retailer prices

From $1,512 SGD

€1,126 EUR

As of October 27, 2026

Save $4,333 SGD (74%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $5,845 SGD at Brilliant Earth · As of October 26, 2026

View at Brilliant Earth

About this 1.57ct lab-grown marquise diamond

This 1.57ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG667458721 or 667458721. Listed at 22 retailers as of October 26, 2026, with prices from $1,512 to $5,845, a $4,333 spread on the same certified stone. Brilliant Earth lists it at $5,845. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.4°

Pavilion angle40.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG667458721

Dimensions11.91 × 5.95 × 3.83 mm

L/W Ratio2.00

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG667458721

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: $5,845 SGD|Low: $639 SGD|High: $5,845 SGD|Avg: $2,058 SGD|+23.8%

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

Retailer 22

October 27, 2026

Retailer 7$675 SGD

Retailer 11$716 SGD

Retailer 20$756 SGD

Retailer 14$792 SGD

Retailer 5$838 SGD

Retailer 8$1,196 SGD

Retailer 12$1,215 SGD

Retailer 13$1,216 SGD

Retailer 17$1,280 SGD

Retailer 18$1,484 SGD

Retailer 2$1,512 SGD

Retailer 9$1,859 SGD

Retailer 6$1,874 SGD

Retailer 3$2,202 SGD

Retailer 19$2,436 SGD

Retailer 4$2,648 SGD

Retailer 21$2,721 SGD

Retailer 16$2,865 SGD

Retailer 22$3,105 SGD

Retailer 10$3,325 SGD

Retailer 15$4,554 SGD

Brilliant Earth$5,845 SGD

31 data points across 22 retailers

22 retailers$1,512 SGD to $5,845 SGD

Retailer 1

$675 SGD

$528 USD

Price last confirmed 12 days ago

Retailer 2

$716 SGD

$560 USD

View

Price last confirmed 12 days ago

Retailer 3

$792 SGD

$619 USD

View

Price last confirmed 17 days ago

Retailer 4

$838 SGD

$655 USD

View

Price last confirmed 11 days ago

Retailer 5

$1,196 SGD

$935 USD

View

Price last confirmed 10 days ago

Retailer 6

$1,215 SGD

$950 USD

View

Price last confirmed 10 days ago

Retailer 7

$1,216 SGD

$951 USD

View

Price last confirmed 9 days ago

Retailer 8

$1,280 SGD

£788 GBP

View

Price last confirmed 10 days ago

Retailer 9

$1,484 SGD

$1,160 USD

View

Price last confirmed 9 days ago

Retailer 10

$1,512 SGD

€1,126 EUR

View

Retailer 11

$1,859 SGD

A$2,236 AUD

View

Price last confirmed 13 days ago

Retailer 12

$1,874 SGD

$1,465 USD

View

Price last confirmed 10 days ago

Retailer 13

$2,202 SGD

$1,722 USD

View

Price last confirmed 11 days ago

Retailer 14

$2,436 SGD

£1,500 GBP

View

Price last confirmed 11 days ago

Retailer 15

$2,648 SGD

View

Price last confirmed 10 days ago

Retailer 16

$2,721 SGD

$2,128 USD

View

Price last confirmed 11 days ago

Retailer 17

$2,792 SGD

$2,183 USD

View

Price last confirmed 11 days ago

Retailer 18

$2,865 SGD

$2,240 USD

View

Price last confirmed 10 days ago

Retailer 19

$3,105 SGD

$2,428 USD

View

Price last confirmed 11 days ago

Retailer 20

$3,325 SGD

£2,047 GBP

View

Price last confirmed 14 days ago

Retailer 21

$4,554 SGD

A$5,478 AUD

View

Price last confirmed 25 days ago

Most Expensive

Brilliant Earth

18032155A · Oct 26

$5,845 SGD

$4,570 USD

View

21 more retailers have this diamond

Prices start from $1,512 SGDSave up to $4,333 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

1.57ct Marquise

$1,512 SGD