Princess|Lab Grown|IGI

1.57ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG816624870

Shape and cutting style on the report: Princess cut

Certificate IGI LG816624870

Diamond specifications and retailer prices

From $1,051 AUD

$738 USD

As of October 30, 2026

Save $3,790 AUD (78%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: $4,840 AUD at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 1.57ct lab-grown princess diamond

This 1.57ct lab-grown princess 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 LG816624870 or 816624870. Listed at 24 retailers as of October 30, 2026, with prices from $1,051 to $4,840, a $3,790 spread on the same certified stone. Brilliant Earth lists it at $4,840. 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 angle43.2°

Pavilion angle37.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG816624870

Dimensions6.28 × 6.23 × 4.45 mm

L/W Ratio1.01

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 LG816624870

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 30

Current: $4,840 AUD|Low: $984 AUD|High: $6,506 AUD|Avg: $2,530 AUD|-25.6%

Brilliant Earth

Retailer 2

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Retailer 11

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Retailer 19

October 31, 2026

Retailer 9$1,025 AUD

Retailer 3$1,051 AUD

Retailer 10$1,189 AUD

Retailer 11$1,189 AUD

Retailer 5$1,637 AUD

Retailer 12$1,637 AUD

Retailer 18$1,714 AUD

Retailer 2$1,742 AUD

Retailer 15$1,771 AUD

Retailer 7$2,164 AUD

Retailer 14$2,508 AUD

Retailer 13$2,712 AUD

Retailer 4$2,759 AUD

Retailer 19$3,518 AUD

Retailer 6$3,757 AUD

Retailer 17$3,787 AUD

Retailer 8$3,965 AUD

Retailer 16$4,612 AUD

Brilliant Earth$4,840 AUD

37 data points across 19 retailers

24 retailers$1,051 AUD to $4,840 AUD

Retailer 1

$1,025 AUD

$720 USD

Price last confirmed 20 days ago

Retailer 2

$1,025 AUD

$720 USD

View

Price last confirmed 39 days ago

Retailer 3

$1,051 AUD

$738 USD

View

Final sale: no returns

Retailer 4

$1,115 AUD

$783 USD

View

Price last confirmed 38 days ago

Retailer 5

$1,172 AUD

$823 USD

View

Price last confirmed 36 days ago

Retailer 6

$1,189 AUD

$835 USD

View

Price last confirmed 28 days ago

Retailer 7

$1,189 AUD

$835 USD

View

Price last confirmed 19 days ago

Retailer 8

$1,637 AUD

$1,150 USD

View

Retailer 9

$1,637 AUD

$1,150 USD

View

Retailer 10

$1,714 AUD

$1,204 USD

View

Retailer 11

$1,742 AUD

£963 GBP

View

Retailer 12

$1,771 AUD

€1,185 EUR

View

Retailer 13

$2,164 AUD

ZAR 24,559 ZAR

View

Price last confirmed 7 days ago

Retailer 14

$2,508 AUD

$1,762 USD

View

B+

Retailer 15

$2,712 AUD

View

B+

Retailer 16

$2,759 AUD

$1,938 USD

View

Retailer 17

$3,341 AUD

$2,347 USD

View

Price last confirmed 31 days ago

B+

Retailer 18

$3,518 AUD

$2,471 USD

View

Retailer 19

$3,688 AUD

£2,040 GBP

View

Price last confirmed 20 days ago

B+

Retailer 20

$3,757 AUD

$2,639 USD

View

B+

Retailer 21

$3,787 AUD

$2,660 USD

View

Retailer 22

$3,965 AUD

$2,785 USD

View

Price last confirmed 13 days ago

B+

Retailer 23

$4,612 AUD

£2,551 GBP

View

Most Expensive

Brilliant Earth

21018818A · Oct 30

$4,840 AUD

$3,400 USD

View

23 more retailers have this diamond

Prices start from $1,051 AUDSave up to $3,790 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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1.57ct Princess

$1,051 AUD