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Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG851606835

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851606835

Diamond specifications and retailer prices

From $366 AUD
As of November 4, 2026
Save $1,201 AUD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,568 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851606835 or 851606835. Listed at 13 retailers as of November 2, 2026, with prices from $366 to $1,568, a $1,201 spread on the same certified stone. MOH London lists it at $1,568. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851606835
Dimensions11.50 × 5.78 × 3.42 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.50 mm5.78 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851606835
Side View
Table 59.0%Crown 32.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 59.2%

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: Nov 4
Current: $1,568 AUD|Low: $366 AUD|High: $1,577 AUD|Avg: $987 AUD|-0.6%
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
November 4, 2026
Retailer 7$366 AUD
Retailer 3$438 AUD
Retailer 2$520 AUD
Retailer 11$667 AUD
Retailer 13$758 AUD
Retailer 6$955 AUD
Retailer 5$1,069 AUD
Retailer 10$1,112 AUD
Retailer 8$1,257 AUD
Retailer 9$1,262 AUD
Retailer 4$1,267 AUD
Retailer 12$1,347 AUD
MOH London$1,568 AUD

8 data points across 13 retailers

13 retailers$366 AUD to $1,568 AUD

A
Cheapest Retailer
-
$366 AUD
A
Retailer 2
-
$438 AUD
View
A
Retailer 3
-
$520 AUD
View
A
Retailer 4
-
$667 AUD
View
A
Retailer 5
-
$758 AUD
View
B+
Retailer 6
-
$955 AUD
View
Retailer 7
-
$1,069 AUD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$1,112 AUD
View
B
Retailer 9
-
$1,257 AUD
View
B
Retailer 10
-
$1,262 AUD
View
B
Retailer 11
-
$1,267 AUD
View
B
Retailer 12
-
$1,347 AUD
View
Most Expensive
B
MOH London
LG851606835 · Nov 2
$1,568 AUD
£866 GBP
View
12 more retailers have this diamond
Prices start from $366 AUDSave up to $1,201 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
1.28ct Marquise
$366 AUD