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 €242 EUR
£214 GBP
As of November 2, 2026
Save €614 EUR (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €856 EUR at Brilliant Earth · As of November 2, 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 2, 2026, with prices from €242 to €856, a €614 spread on the same certified stone. Brilliant Earth lists it at €856. 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
Color
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

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 2
Current: €356 EUR|Low: €242 EUR|High: €684 EUR|Avg: €454 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 3€242 EUR
Retailer 6€341 EUR
Retailer 4€350 EUR
Retailer 1€356 EUR
Retailer 5€426 EUR
Retailer 2€671 EUR
Retailer 7€684 EUR

4 data points across 7 retailers

8 retailers€242 EUR to €856 EUR

A
Cheapest Retailer
-
€242 EUR
£214 GBP
A
Retailer 2
-
€341 EUR
ZAR 6,181 ZAR
View
A
Retailer 3
-
€350 EUR
$393 USD
View
A
Retailer 4
-
€356 EUR
£314 GBP
View
A
Retailer 5
-
€426 EUR
$478 USD
View
B+
Retailer 6
-
€671 EUR
$753 USD
View
B+
Retailer 7
-
€684 EUR
$767 USD
View
Most Expensive
B
Brilliant Earth
22391645A · Nov 2
€856 EUR
$960 USD
View
7 more retailers have this diamond
Prices start from €242 EURSave up to €614 EUR

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
€242 EUR