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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 $358 CAD
As of November 4, 2026
Save $1,174 CAD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,533 CAD 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 $358 to $1,533, a $1,174 spread on the same certified stone. MOH London lists it at $1,533. 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
Color
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: $1,533 CAD|Low: $358 CAD|High: $1,541 CAD|Avg: $965 CAD|-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$358 CAD
Retailer 3$428 CAD
Retailer 2$509 CAD
Retailer 11$652 CAD
Retailer 13$741 CAD
Retailer 6$934 CAD
Retailer 5$1,045 CAD
Retailer 10$1,087 CAD
Retailer 8$1,229 CAD
Retailer 9$1,233 CAD
Retailer 4$1,239 CAD
Retailer 12$1,317 CAD
MOH London$1,533 CAD

8 data points across 13 retailers

13 retailers$358 CAD to $1,533 CAD

A
Cheapest Retailer
-
$358 CAD
A
Retailer 2
-
$428 CAD
View
A
Retailer 3
-
$509 CAD
View
A
Retailer 4
-
$652 CAD
View
A
Retailer 5
-
$741 CAD
View
B+
Retailer 6
-
$934 CAD
View
Retailer 7
-
$1,045 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,087 CAD
View
B
Retailer 9
-
$1,229 CAD
View
B
Retailer 10
-
$1,233 CAD
View
B
Retailer 11
-
$1,239 CAD
View
B
Retailer 12
-
$1,317 CAD
View
Most Expensive
B
MOH London
LG851606835 · Nov 2
$1,533 CAD
£866 GBP
View
12 more retailers have this diamond
Prices start from $358 CADSave up to $1,174 CAD

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
$358 CAD