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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG743546432

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG743546432

Diamond specifications and retailer prices

From $480 AUD
As of November 6, 2026
Save $2,379 AUD (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,859 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743546432 or 743546432. Listed at 25 retailers as of November 3, 2026, with prices from $480 to $2,859, a $2,379 spread on the same certified stone. MOH London lists it at $2,859. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743546432
Dimensions11.13 × 5.41 × 3.40 mm
L/W Ratio2.06
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
11.13 mm5.41 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743546432
Side View
Table 61.0%Crown 36°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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 6
Current: $2,859 AUD|Low: $480 AUD|High: $2,894 AUD|Avg: $1,486 AUD|-1.2%
MOH London
Retailer 2
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November 6, 2026
Retailer 18$480 AUD
Retailer 4$539 AUD
Retailer 19$557 AUD
Retailer 21$596 AUD
Retailer 24$694 AUD
Retailer 23$779 AUD
Retailer 6$843 AUD
Retailer 2$966 AUD
Retailer 22$1,051 AUD
Retailer 17$1,101 AUD
Retailer 20$1,126 AUD
Retailer 12$1,341 AUD
Retailer 10$1,357 AUD
Retailer 3$1,464 AUD
Retailer 15$1,464 AUD
Retailer 5$1,748 AUD
Retailer 13$1,916 AUD
Retailer 11$1,977 AUD
Retailer 8$2,001 AUD
Retailer 16$2,178 AUD
Retailer 9$2,277 AUD
Retailer 7$2,327 AUD
Retailer 14$2,543 AUD
MOH London$2,859 AUD

28 data points across 24 retailers

25 retailers$480 AUD to $2,859 AUD

A
Cheapest Retailer
-
$480 AUD
A
Retailer 2
-
$539 AUD
View
Final sale: no returns
A
Retailer 3
-
$557 AUD
View
A
Retailer 4
-
$596 AUD
View
A
Retailer 5
-
$694 AUD
View
A
Retailer 6
-
$779 AUD
View
A
Retailer 7
-
$843 AUD
View
B+
Retailer 8
-
$966 AUD
View
A
Retailer 9
-
$1,051 AUD
View
B+
Retailer 10
-
$1,101 AUD
View
B+
Retailer 11
-
$1,126 AUD
View
B+
Retailer 12
-
$1,341 AUD
View
B+
Retailer 13
-
$1,357 AUD
View
B+
Retailer 14
-
$1,464 AUD
View
B+
Retailer 15
-
$1,464 AUD
View
B+
Retailer 16
-
$1,748 AUD
View
B
Retailer 17
-
$1,916 AUD
View
B
Retailer 18
-
$1,977 AUD
View
B
Retailer 19
-
$2,001 AUD
View
Retailer 20
-
$2,178 AUD
View
Price last confirmed 9 days ago
B
Retailer 21
-
$2,277 AUD
View
B
Retailer 22
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$2,327 AUD
View
Retailer 23
-
$2,410 AUD
View
Price last confirmed 29 days ago
B
Retailer 24
-
$2,543 AUD
View
Most Expensive
B
MOH London
LG743546432 · Nov 3
$2,859 AUD
£1,576 GBP
View
24 more retailers have this diamond
Prices start from $480 AUDSave up to $2,379 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
1.20ct Marquise
$480 AUD