Marquise|Lab Grown|IGI

1.77ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG628407568

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG628407568

Diamond specifications and retailer prices

From $1,494 AUD

HK$8,200 HKD

As of October 30, 2026

Save $5,068 AUD (77%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: $7,843 AUD at Do Amore Diamonds · As of October 23, 2026

View at Do Amore Diamonds

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628407568 or 628407568. Listed at 28 retailers as of October 28, 2026, with a 339% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.6°

Pavilion angle41.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG628407568

Dimensions12.86 × 6.19 × 3.94 mm

L/W Ratio2.08

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG628407568

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Oct 30

Current: $7,843 AUD|Low: $884 AUD|High: $10,025 AUD|Avg: $3,777 AUD

Do Amore Diamonds

Retailer 2

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October 22, 2026

Retailer 10$884 AUD

Retailer 9$1,096 AUD

Retailer 3$1,113 AUD

Retailer 13$1,281 AUD

Retailer 22$1,405 AUD

Retailer 5$1,494 AUD

Retailer 8$1,608 AUD

Retailer 14$1,708 AUD

Retailer 19$1,747 AUD

Retailer 2$1,797 AUD

Retailer 17$2,057 AUD

Retailer 21$2,719 AUD

Retailer 11$2,882 AUD

Retailer 20$3,174 AUD

Retailer 7$3,494 AUD

Retailer 4$3,583 AUD

Retailer 23$4,060 AUD

Retailer 12$4,305 AUD

Retailer 6$4,315 AUD

Retailer 18$4,790 AUD

Retailer 16$5,705 AUD

Retailer 15$6,562 AUD

Do Amore Diamonds$7,843 AUD

35 data points across 23 retailers

28 retailers$1,494 AUD to $6,562 AUD

Retailer 1

$884 AUD

$621 USD

Price last confirmed 22 days ago

Retailer 2

$1,096 AUD

$770 USD

View

Price last confirmed 22 days ago

Retailer 3

$1,096 AUD

$770 USD

View

Price last confirmed 19 days ago

Retailer 4

$1,281 AUD

$900 USD

View

Price last confirmed 6 days ago

Retailer 5

$1,405 AUD

$987 USD

View

Price last confirmed 8 days ago

Retailer 6

$1,494 AUD

HK$8,200 HKD

View

Retailer 7

$1,608 AUD

$1,130 USD

View

Retailer 8

$1,708 AUD

$1,200 USD

View

Price last confirmed 9 days ago

Retailer 9

$1,797 AUD

£994 GBP

View

Price last confirmed 8 days ago

Retailer 10

$2,057 AUD

ZAR 23,341 ZAR

View

Price last confirmed 11 days ago

Retailer 11

$2,155 AUD

$1,514 USD

View

Price last confirmed 30 days ago

Retailer 12

$2,344 AUD

$1,647 USD

View

Price last confirmed 31 days ago

Retailer 13

$2,465 AUD

$1,732 USD

View

Price last confirmed 31 days ago

Retailer 14

$2,719 AUD

$1,910 USD

View

Price last confirmed 8 days ago

Retailer 15

$2,882 AUD

$2,025 USD

View

Price last confirmed 8 days ago

Retailer 16

$3,174 AUD

$2,230 USD

View

Price last confirmed 9 days ago

Retailer 17

$3,180 AUD

$2,234 USD

View

Price last confirmed 19 days ago

Retailer 18

$3,180 AUD

$2,234 USD

View

Price last confirmed 8 days ago

Retailer 19

$3,494 AUD

$2,455 USD

View

Price last confirmed 8 days ago

Retailer 20

$3,583 AUD

$2,517 USD

View

Price last confirmed 9 days ago

Retailer 21

$4,060 AUD

$2,852 USD

View

Price last confirmed 8 days ago

Retailer 22

$4,305 AUD

SGD 4,087 SGD

View

Price last confirmed 9 days ago

Retailer 23

$4,315 AUD

View

Price last confirmed 21 days ago

Retailer 24

$4,790 AUD

£2,650 GBP

View

Price last confirmed 11 days ago

Retailer 25

$5,173 AUD

$3,634 USD

View

Price last confirmed 29 days ago

Retailer 26

$5,705 AUD

£3,156 GBP

View

Price last confirmed 23 days ago

Retailer 27

$6,562 AUD

$4,610 USD

View

Most Expensive

Do Amore Diamonds

27-E398F2DD7 · Oct 23

$7,843 AUD

$5,510 USD

View

Price last confirmed 7 days ago

27 more retailers have this diamond

Prices start from $1,494 AUDSave up to $5,068 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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1.77ct Marquise

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