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Marquise|Lab Grown|IGI

1.03ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG630456349

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG630456349

Diamond specifications and retailer prices

From $390 AUD
$274 USD
As of October 31, 2026
Save $1,518 AUD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,477 AUD at Brilliant Earth · As of October 17, 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 LG630456349 or 630456349. Listed at 22 retailers as of October 30, 2026, with a 389% 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

1.03
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG630456349
Dimensions10.30 × 5.29 × 3.36 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
Top View
10.30 mm5.29 mm1.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG630456349
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.5%

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 31
Current: $2,477 AUD|Low: $390 AUD|High: $2,477 AUD|Avg: $1,029 AUD
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
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 12$390 AUD
Retailer 3$434 AUD
Retailer 5$492 AUD
Retailer 9$584 AUD
Retailer 15$746 AUD
Retailer 18$747 AUD
Retailer 7$763 AUD
Retailer 11$790 AUD
Retailer 2$818 AUD
Retailer 19$848 AUD
Retailer 16$1,060 AUD
Retailer 13$1,082 AUD
Retailer 10$1,165 AUD
Retailer 6$1,397 AUD
Retailer 8$1,470 AUD
Retailer 17$1,517 AUD
Retailer 14$1,750 AUD
Retailer 4$1,908 AUD
Brilliant Earth$2,477 AUD

41 data points across 19 retailers

22 retailers$390 AUD to $1,908 AUD

Retailer 1
-
$350 AUD
$246 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$390 AUD
$274 USD
View
Final sale: no returns
Retailer 3
-
$434 AUD
$305 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$434 AUD
$305 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$438 AUD
$308 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$492 AUD
HK$2,700 HKD
View
A
Retailer 7
-
$584 AUD
$410 USD
View
A
Retailer 8
-
$746 AUD
ZAR 8,468 ZAR
View
A
Retailer 9
-
$747 AUD
€500 EUR
View
A
Retailer 10
-
$763 AUD
$536 USD
View
A
Retailer 11
-
$818 AUD
£453 GBP
View
A
Retailer 12
-
$848 AUD
$596 USD
View
B+
Retailer 13
-
$1,060 AUD
View
B+
Retailer 14
-
$1,082 AUD
$760 USD
View
B+
Retailer 15
-
$1,092 AUD
$767 USD
View
B+
Retailer 16
-
$1,165 AUD
SGD 1,106 SGD
View
Retailer 17
-
$1,397 AUD
$981 USD
View
Price last confirmed 11 days ago
B+
Retailer 18
-
$1,470 AUD
$1,033 USD
View
B+
Retailer 19
-
$1,517 AUD
View
B+
Retailer 20
-
$1,750 AUD
£968 GBP
View
B
Retailer 21
-
$1,908 AUD
$1,341 USD
View
Most Expensive
Brilliant Earth
14010213A · Oct 17
$2,477 AUD
$1,740 USD
View
Price last confirmed 13 days ago
21 more retailers have this diamond
Prices start from $390 AUDSave up to $1,518 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
$390 AUD