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Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG839664801

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839664801

Diamond specifications and retailer prices

From $275 SGD
As of November 4, 2026
Save $1,093 SGD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,367 SGD 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 LG839664801 or 839664801. Listed at 11 retailers as of November 2, 2026, with prices from $275 to $1,367, a $1,093 spread on the same certified stone. MOH London lists it at $1,367. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839664801
Dimensions10.92 × 5.82 × 3.56 mm
L/W Ratio1.88
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
10.92 mm5.82 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839664801
Side View
Table 58.0%Crown 33.8°Girdle: MED-STKPavilion 40.6°CuletDepth 61.2%

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 4
Current: $1,367 SGD|Low: $270 SGD|High: $1,533 SGD|Avg: $815 SGD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 7$275 SGD
Retailer 11$319 SGD
Retailer 2$455 SGD
Retailer 10$584 SGD
Retailer 8$635 SGD
Retailer 5$834 SGD
Retailer 6$930 SGD
Retailer 3$971 SGD
Retailer 9$1,097 SGD
Retailer 4$1,098 SGD
MOH London$1,367 SGD

39 data points across 11 retailers

11 retailers$275 SGD to $1,367 SGD

A
Cheapest Retailer
-
$275 SGD
A
Retailer 2
-
$319 SGD
View
A
Retailer 3
-
$455 SGD
View
A
Retailer 4
-
$584 SGD
View
Retailer 5
-
$635 SGD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$834 SGD
View
B+
Retailer 7
-
$930 SGD
View
Retailer 8
-
$971 SGD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$1,097 SGD
View
B
Retailer 10
-
$1,098 SGD
View
Most Expensive
B
MOH London
LG839664801 · Nov 2
$1,367 SGD
£843 GBP
View
10 more retailers have this diamond
Prices start from $275 SGDSave up to $1,093 SGD

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
$275 SGD