Marquise|Lab Grown|IGI

1.40ct F FL Marquise Lab Grown Diamond

EX • F/FL • IGI LG813601658

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813601658

Diamond specifications and retailer prices

From €631 EUR
As of November 4, 2026
Save €1,206 EUR (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €2,610 EUR at Brilliant Earth · As of October 3, 2026
View at Brilliant Earth

About this 1.4ct lab-grown marquise diamond

This 1.4ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813601658 or 813601658. Listed at 9 retailers as of November 4, 2026, with a 191% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
F
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813601658
Dimensions12.01 × 5.76 × 3.47 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.01 mm5.76 mm1.40 ctF / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813601658
Side View
Table 62.0%Crown 34.3°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 60.2%

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 4
Current: €1,782 EUR|Low: €358 EUR|High: €2,619 EUR|Avg: €1,064 EUR|-32.0%
Brilliant Earth
Retailer 2
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Retailer 19
October 30, 2026
Retailer 19€398 EUR
Retailer 3€530 EUR
Retailer 9€594 EUR
Retailer 17€610 EUR
Retailer 12€631 EUR
Retailer 2€658 EUR
Retailer 18€678 EUR
Retailer 5€707 EUR
Retailer 4€725 EUR
Retailer 15€862 EUR
Retailer 8€968 EUR
Retailer 13€1,300 EUR
Retailer 10€1,314 EUR
Retailer 7€1,417 EUR
Retailer 11€1,517 EUR
Retailer 6€1,572 EUR
Brilliant Earth€1,782 EUR
Retailer 14€1,803 EUR
Retailer 16€1,837 EUR

19 data points across 19 retailers

9 retailers€631 EUR to €1,837 EUR

A
Cheapest Retailer
-
€631 EUR
A
Retailer 2
-
€658 EUR
View
Retailer 3
-
€678 EUR
View
Price last confirmed 36 days ago
B+
Retailer 4
-
€862 EUR
View
B
Retailer 5
-
€1,300 EUR
View
B
Retailer 6
-
€1,782 EUR
View
B
Retailer 7
-
€1,803 EUR
View
B
Retailer 8
-
€1,837 EUR
View
Most Expensive
Brilliant Earth
20553964A · Oct 3
€2,610 EUR
$2,930 USD
View
Price last confirmed 33 days ago
8 more retailers have this diamond
Prices start from €631 EURSave up to €1,206 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
1.40ct Marquise
€631 EUR