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Marquise|Lab Grown|IGI

1.28ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG845654640

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845654640

Diamond specifications and retailer prices

From $381 SGD
As of November 5, 2026
Save $1,165 SGD (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,546 SGD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG845654640 or 845654640. Listed at 8 retailers as of November 5, 2026, with prices from $381 to $1,546, a $1,165 spread on the same certified stone. Brilliant Earth lists it at $1,546. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845654640
Dimensions11.64 × 5.71 × 3.52 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.64 mm5.71 mm1.28 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845654640
Side View
Table 61.0%Crown 34.5°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $1,546 SGD|Low: $346 SGD|High: $1,546 SGD|Avg: $684 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$381 SGD
Retailer 8$488 SGD
Retailer 7$544 SGD
Retailer 4$568 SGD
Retailer 3$618 SGD
Retailer 6$1,012 SGD
Retailer 5$1,077 SGD
Brilliant Earth$1,546 SGD

6 data points across 8 retailers

8 retailers$381 SGD to $1,546 SGD

A
Cheapest Retailer
-
$381 SGD
A
Retailer 2
-
$488 SGD
View
A
Retailer 3
-
$544 SGD
View
A
Retailer 4
-
$568 SGD
View
A
Retailer 5
-
$618 SGD
View
B
Retailer 6
-
$1,012 SGD
View
B
Retailer 7
-
$1,077 SGD
View
Most Expensive
B
Brilliant Earth
22391645A · Nov 5
$1,546 SGD
$1,210 USD
View
7 more retailers have this diamond
Prices start from $381 SGDSave up to $1,165 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
$381 SGD