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Marquise|Lab Grown|IGI

1.22ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780662423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662423

Diamond specifications and retailer prices

From $694 AUD
As of November 4, 2026
Save $3,123 AUD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,817 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 1.22ct lab-grown marquise diamond

This 1.22ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780662423 or 780662423. Listed at 14 retailers as of November 3, 2026, with prices from $694 to $3,817, a $3,123 spread on the same certified stone. MOH London lists it at $3,817. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662423
Dimensions11.11 × 5.63 × 3.51 mm
L/W Ratio1.97
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
11.11 mm5.63 mm1.22 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662423
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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: $3,817 AUD|Low: $694 AUD|High: $4,685 AUD|Avg: $2,236 AUD|-16.2%
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
November 5, 2026
Retailer 8$694 AUD
Retailer 10$857 AUD
Retailer 7$1,074 AUD
Retailer 2$1,159 AUD
Retailer 6$1,213 AUD
Retailer 12$1,380 AUD
Retailer 3$1,406 AUD
Retailer 14$1,576 AUD
Retailer 4$1,623 AUD
Retailer 13$2,006 AUD
Retailer 11$2,316 AUD
Retailer 9$3,300 AUD
Retailer 5$3,436 AUD
MOH London$3,817 AUD

41 data points across 14 retailers

14 retailers$694 AUD to $3,817 AUD

A
Cheapest Retailer
-
$694 AUD
A
Retailer 2
-
$857 AUD
View
A
Retailer 3
-
$1,074 AUD
View
B+
Retailer 4
-
$1,159 AUD
View
B+
Retailer 5
-
$1,213 AUD
View
B+
Retailer 6
-
$1,380 AUD
View
Retailer 7
-
$1,406 AUD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$1,576 AUD
View
B+
Retailer 9
-
$1,623 AUD
View
B+
Retailer 10
-
$2,006 AUD
View
B+
Retailer 11
-
$2,316 AUD
View
B
Retailer 12
-
$3,300 AUD
View
Retailer 13
-
$3,436 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
LG780662423 · Nov 3
$3,817 AUD
£2,104 GBP
View
13 more retailers have this diamond
Prices start from $694 AUDSave up to $3,123 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
1.22ct Marquise
$694 AUD