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Marquise|Lab Grown|IGI

1.03ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG678573572

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG678573572

Diamond specifications and retailer prices

From $283 AUD
$199 USD
As of October 30, 2026
Save $1,696 AUD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,979 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG678573572 or 678573572. Listed at 13 retailers as of October 30, 2026, with prices from $283 to $1,979, a $1,696 spread on the same certified stone. Brilliant Earth lists it at $1,979. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678573572
Dimensions10.13 × 5.45 × 3.30 mm
L/W Ratio1.86
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
Top View
10.13 mm5.45 mm1.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678573572
Side View
Table 58.0%Crown 33.1°Girdle: MediumPavilion 39.7°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
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: $1,979 AUD|Low: $283 AUD|High: $2,491 AUD|Avg: $1,021 AUD|-20.6%
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
October 30, 2026
Retailer 3$283 AUD
Retailer 11$329 AUD
Retailer 5$396 AUD
Retailer 14$491 AUD
Retailer 10$605 AUD
Retailer 6$669 AUD
Retailer 12$689 AUD
Retailer 7$751 AUD
Retailer 2$859 AUD
Retailer 8$873 AUD
Retailer 13$918 AUD
Retailer 15$1,129 AUD
Retailer 16$1,226 AUD
Retailer 4$1,609 AUD
Retailer 9$1,645 AUD
Brilliant Earth$1,979 AUD

32 data points across 16 retailers

13 retailers$283 AUD to $1,979 AUD

A
Cheapest Retailer
-
$283 AUD
$199 USD
A
Retailer 2
-
$329 AUD
$231 USD
View
A
Retailer 3
-
$396 AUD
$278 USD
View
Final sale: no returns
A
Retailer 4
-
$491 AUD
$345 USD
View
A
Retailer 5
-
$605 AUD
€405 EUR
View
A
Retailer 6
-
$689 AUD
$484 USD
View
A
Retailer 7
-
$859 AUD
View
B+
Retailer 8
-
$918 AUD
$645 USD
View
B+
Retailer 9
-
$1,129 AUD
$793 USD
View
B+
Retailer 10
-
$1,226 AUD
$861 USD
View
B
Retailer 11
-
$1,609 AUD
$1,130 USD
View
B
Retailer 12
-
$1,645 AUD
£910 GBP
View
Most Expensive
B
Brilliant Earth
14093526A · Oct 30
$1,979 AUD
$1,390 USD
View
12 more retailers have this diamond
Prices start from $283 AUDSave up to $1,696 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
1.03ct Marquise
$283 AUD