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Marquise|Lab Grown|IGI

1.57ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG812620141

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812620141

Diamond specifications and retailer prices

From $999 AUD
$700 USD
As of November 1, 2026
Save $3,385 AUD (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,384 AUD at MOH London · As of October 29, 2026
View at MOH London

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620141 or 812620141. Listed at 23 retailers as of October 29, 2026, with prices from $999 to $4,384, a $3,385 spread on the same certified stone. MOH London lists it at $4,384. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620141
Dimensions11.87 × 6.01 × 3.73 mm
L/W Ratio1.98
Girdle conditionFaceted
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
Top View
11.87 mm6.01 mm1.57 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620141
Side View
Table 58.0%Crown 35°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 62.1%

Caratlytics Score

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A
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: Nov 1
Current: $4,384 AUD|Low: $999 AUD|High: $4,994 AUD|Avg: $2,600 AUD|-3.8%
MOH London
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
November 2, 2026
Retailer 3$999 AUD
Retailer 9$1,082 AUD
Retailer 11$1,213 AUD
Retailer 4$1,558 AUD
Retailer 17$1,714 AUD
Retailer 6$1,714 AUD
Retailer 2$1,734 AUD
Retailer 15$1,902 AUD
Retailer 12$2,379 AUD
Retailer 13$2,578 AUD
Retailer 10$2,671 AUD
Retailer 8$3,284 AUD
Retailer 18$3,336 AUD
Retailer 7$3,475 AUD
Retailer 5$3,574 AUD
Retailer 16$3,640 AUD
Retailer 14$4,124 AUD
MOH London$4,384 AUD

40 data points across 18 retailers

23 retailers$999 AUD to $4,384 AUD

Retailer 1
-
$910 AUD
$638 USD
Price last confirmed 25 days ago
Retailer 2
-
$990 AUD
$694 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
$999 AUD
$700 USD
View
Final sale: no returns
Retailer 4
-
$1,056 AUD
$740 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$1,056 AUD
$740 USD
View
Price last confirmed 21 days ago
Retailer 6
-
$1,067 AUD
$748 USD
View
Price last confirmed 38 days ago
A
Retailer 7
-
$1,213 AUD
$850 USD
View
A
Retailer 8
-
$1,558 AUD
$1,092 USD
View
A
Retailer 9
-
$1,714 AUD
$1,201 USD
View
Retailer 10
-
$1,714 AUD
€1,144 EUR
View
Price last confirmed 8 days ago
A
Retailer 11
-
$1,734 AUD
£957 GBP
View
A
Retailer 12
-
$1,902 AUD
ZAR 21,535 ZAR
View
A
Retailer 13
-
$2,379 AUD
$1,667 USD
View
B+
Retailer 14
-
$2,578 AUD
View
Retailer 15
-
$2,671 AUD
$1,872 USD
View
Price last confirmed 9 days ago
Retailer 16
-
$2,969 AUD
$2,081 USD
View
Price last confirmed 33 days ago
Retailer 17
-
$3,284 AUD
£1,812 GBP
View
Price last confirmed 22 days ago
B+
Retailer 18
-
$3,336 AUD
$2,338 USD
View
B+
Retailer 19
-
$3,475 AUD
$2,435 USD
View
B+
Retailer 20
-
$3,574 AUD
$2,505 USD
View
B+
Retailer 21
-
$3,640 AUD
$2,551 USD
View
B
Retailer 22
-
$4,124 AUD
$2,890 USD
View
Most Expensive
B
MOH London
LG812620141 · Oct 29
$4,384 AUD
£2,419 GBP
View
22 more retailers have this diamond
Prices start from $999 AUDSave up to $3,385 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.

A
1.57ct Marquise
$999 AUD