Marquise|Lab Grown|IGI

1.28ct E VS2 Marquise Lab Grown Diamond

EX • E/VS2 • IGI LG844640518

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844640518

Diamond specifications and retailer prices

From $461 USD
£363 GBP
As of October 24, 2026
Save $809 USD (64%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,270 USD at Brilliant Earth · As of October 23, 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 E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844640518 or 844640518. Listed at 2 retailers as of October 23, 2026, with prices from $461 to $1,270, a $809 spread on the same certified stone. Brilliant Earth lists it at $1,270. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844640518
Dimensions11.52 × 5.49 × 3.54 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.52 mm5.49 mm1.28 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844640518
Side View
Table 59.0%Crown 34.2°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: $1,270 USD|Low: $461 USD|High: $1,270 USD|Avg: $874 USD
Brilliant Earth
Retailer 2
October 24, 2026
Retailer 2$461 USD
Brilliant Earth$1,270 USD

11 data points across 2 retailers

2 retailers$461 USD to $1,270 USD

A
Cheapest Retailer
-
$461 USD
£363 GBP
Most Expensive
B
Brilliant Earth
21830100A · Oct 23
$1,270 USD
View
1 more retailer has this diamond
Prices start from $461 USDSave up to $809 USD

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
$461 USD