Marquise|Lab Grown|IGI

1.77ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG762545098

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762545098

Diamond specifications and retailer prices

From $2,808 AUD

As of November 2, 2026

14 retailers carry this diamond

Most expensive: $7,291 AUD at Brilliant Earth · As of October 18, 2026

View at Brilliant Earth

About this 1.77ct lab-grown marquise diamond

This 1.77ct 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 LG762545098 or 762545098. Listed at 14 retailers as of November 2, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.8°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG762545098

Dimensions12.39 × 6.35 × 3.97 mm

L/W Ratio1.95

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG762545098

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

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

Price History

Last verified: Nov 2

Current: $7,291 AUD|Low: $1,732 AUD|High: $7,520 AUD|Avg: $3,959 AUD|-3.0%

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

October 26, 2026

Retailer 5$1,732 AUD

Retailer 4$2,046 AUD

Retailer 2$2,808 AUD

Retailer 11$2,886 AUD

Retailer 12$2,911 AUD

Retailer 9$3,088 AUD

Retailer 10$3,218 AUD

Retailer 7$3,508 AUD

Retailer 3$4,866 AUD

Retailer 6$5,001 AUD

Retailer 14$5,418 AUD

Retailer 8$6,232 AUD

Retailer 13$6,774 AUD

Brilliant Earth$7,291 AUD

31 data points across 14 retailers

14 retailers

Retailer 1

$1,732 AUD

$1,214 USD

Price last confirmed 14 days ago

Retailer 2

$2,046 AUD

$1,434 USD

View

Price last confirmed 14 days ago

Retailer 3

$2,466 AUD

HK$13,500 HKD

View

Price last confirmed 15 days ago

B+

Retailer 4

$2,808 AUD

View

Retailer 5

$2,886 AUD

£1,593 GBP

View

Price last confirmed 18 days ago

Retailer 6

$2,886 AUD

£1,593 GBP

View

Price last confirmed 15 days ago

Retailer 7

$2,911 AUD

$2,040 USD

View

Price last confirmed 15 days ago

Retailer 8

$3,508 AUD

ZAR 39,712 ZAR

View

Price last confirmed 13 days ago

Retailer 9

$5,001 AUD

$3,505 USD

View

Price last confirmed 18 days ago

Retailer 10

$5,418 AUD

$3,797 USD

View

Price last confirmed 15 days ago

Retailer 11

$6,232 AUD

£3,439 GBP

View

Price last confirmed 14 days ago

Retailer 12

$6,774 AUD

View

Price last confirmed 28 days ago

Retailer 13

$6,853 AUD

$4,803 USD

View

Price last confirmed 15 days ago

Most Expensive

Brilliant Earth

18939168Y · Oct 18

$7,291 AUD

$5,110 USD

View

Price last confirmed 15 days ago

13 more retailers have this diamond

Prices start from $2,808 AUD

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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B+

1.77ct Marquise

$2,808 AUD