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Marquise|Lab Grown|IGI

1.28ct G VS1 Marquise Lab Grown Diamond

GD • G/VS1 • IGI LG851604790

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851604790

Diamond specifications and retailer prices

From $288 CAD
As of November 4, 2026
Save $1,405 CAD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,693 CAD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG851604790 or 851604790. Listed at 20 retailers as of November 4, 2026, with prices from $288 to $1,693, a $1,405 spread on the same certified stone. Reve Diamonds lists it at $1,693. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
G
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851604790
Dimensions11.09 × 5.71 × 3.54 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.09 mm5.71 mm1.28 ctG / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851604790
Side View
Table 61.0%Crown 35.3°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.0%

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: $436 CAD|Low: $288 CAD|High: $1,693 CAD|Avg: $778 CAD|-0.3%
Retailer 1
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Retailer 19
Reve Diamonds
November 4, 2026
Retailer 18$288 CAD
Retailer 7$322 CAD
Retailer 17$334 CAD
Retailer 6$357 CAD
Retailer 8$392 CAD
Retailer 1$436 CAD
Retailer 10$580 CAD
Retailer 5$616 CAD
Retailer 13$616 CAD
Retailer 12$651 CAD
Retailer 3$679 CAD
Retailer 2$701 CAD
Retailer 19$872 CAD
Retailer 15$874 CAD
Retailer 16$955 CAD
Retailer 9$1,148 CAD
Retailer 11$1,158 CAD
Retailer 4$1,222 CAD
Retailer 14$1,431 CAD
Reve Diamonds$1,693 CAD

11 data points across 20 retailers

20 retailers$288 CAD to $1,693 CAD

A
Cheapest Retailer
-
$288 CAD
A
Retailer 2
-
$322 CAD
View
Final sale: no returns
A
Retailer 3
-
$334 CAD
View
A
Retailer 4
-
$357 CAD
View
A
Retailer 5
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$392 CAD
View
A
Retailer 6
-
$436 CAD
View
Retailer 7
-
$580 CAD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$616 CAD
View
B+
Retailer 9
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$616 CAD
View
B+
Retailer 10
-
$651 CAD
View
B+
Retailer 11
-
$679 CAD
View
B+
Retailer 12
-
$701 CAD
View
Retailer 13
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$872 CAD
View
Price last confirmed 8 days ago
B+
Retailer 14
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$874 CAD
View
B
Retailer 15
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$955 CAD
View
B
Retailer 16
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$1,148 CAD
View
B
Retailer 17
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$1,158 CAD
View
B
Retailer 18
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$1,222 CAD
View
B
Retailer 19
-
$1,431 CAD
View
Most Expensive
C
Reve Diamonds
DC53B7734 · Nov 4
$1,693 CAD
$1,215 USD
View
19 more retailers have this diamond
Prices start from $288 CADSave up to $1,405 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
$288 CAD