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Marquise|Lab Grown|IGI

0.78ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG845658664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845658664

Diamond specifications and retailer prices

From $709 AUD
As of November 4, 2026
Save $2,958 AUD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,666 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 0.78ct lab-grown marquise diamond

This 0.78ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG845658664 or 845658664. Listed at 17 retailers as of November 3, 2026, with prices from $709 to $3,666, a $2,958 spread on the same certified stone. MOH London lists it at $3,666. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.78
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845658664
Dimensions9.83 × 4.78 × 2.97 mm
L/W Ratio2.06
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
9.83 mm4.78 mm0.78 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845658664
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.3°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 4
Current: $3,666 AUD|Low: $709 AUD|High: $3,775 AUD|Avg: $1,686 AUD|-2.9%
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
November 5, 2026
Retailer 12$709 AUD
Retailer 7$791 AUD
Retailer 13$793 AUD
Retailer 6$867 AUD
Retailer 17$879 AUD
Retailer 9$969 AUD
Retailer 16$1,169 AUD
Retailer 14$1,367 AUD
Retailer 2$1,437 AUD
Retailer 4$1,528 AUD
Retailer 11$1,594 AUD
Retailer 3$2,310 AUD
Retailer 8$2,318 AUD
Retailer 10$2,361 AUD
Retailer 5$2,861 AUD
Retailer 15$3,053 AUD
MOH London$3,666 AUD

11 data points across 17 retailers

17 retailers$709 AUD to $3,666 AUD

A
Cheapest Retailer
-
$709 AUD
A
Retailer 2
-
$791 AUD
View
Final sale: no returns
A
Retailer 3
-
$793 AUD
View
A
Retailer 4
-
$867 AUD
View
A
Retailer 5
-
$879 AUD
View
B+
Retailer 6
-
$969 AUD
View
B+
Retailer 7
-
$1,169 AUD
View
B+
Retailer 8
-
$1,367 AUD
View
B+
Retailer 9
-
$1,437 AUD
View
B+
Retailer 10
-
$1,528 AUD
View
B+
Retailer 11
-
$1,594 AUD
View
B
Retailer 12
-
$2,310 AUD
View
B
Retailer 13
-
$2,318 AUD
View
B
Retailer 14
-
$2,361 AUD
View
B
Retailer 15
-
$2,861 AUD
View
B
Retailer 16
-
$3,053 AUD
View
Most Expensive
B
MOH London
LG845658664 · Nov 3
$3,666 AUD
£2,021 GBP
View
16 more retailers have this diamond
Prices start from $709 AUDSave up to $2,958 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
0.78ct Marquise
$709 AUD