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Marquise|Lab Grown|IGI

1.40ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG508156143

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG508156143

Diamond specifications and retailer prices

From €837 EUR
As of November 4, 2026
Save €1,081 EUR (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,381 EUR at Friendly Diamonds · As of November 4, 2026
View at Friendly Diamonds

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508156143 or 508156143. Listed at 15 retailers as of November 4, 2026, with a 129% 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156143
Dimensions11.08 × 6.12 × 3.54 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.08 mm6.12 mm1.40 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508156143
Side View
Table 66.0%Crown 33.4°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €1,571 EUR|Low: €837 EUR|High: €3,934 EUR|Avg: €1,927 EUR|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 8€837 EUR
Retailer 9€1,042 EUR
Retailer 3€1,133 EUR
Retailer 10€1,208 EUR
Retailer 1€1,571 EUR
Retailer 5€1,735 EUR
Retailer 11€1,918 EUR
Retailer 6€2,223 EUR
Retailer 2€2,265 EUR
Retailer 7€3,148 EUR
Retailer 4€3,871 EUR

39 data points across 11 retailers

15 retailers€837 EUR to €1,918 EUR

B+
Cheapest Retailer
-
€837 EUR
B
Retailer 2
-
€1,042 EUR
View
B
Retailer 3
-
€1,133 EUR
View
B
Retailer 4
-
€1,208 EUR
View
Retailer 5
-
€1,208 EUR
View
Price last confirmed 20 days ago
B
Retailer 6
-
€1,363 EUR
View
B
Retailer 7
-
€1,571 EUR
View
B
Retailer 8
-
€1,735 EUR
View
B
Retailer 9
-
€1,918 EUR
View
Retailer 10
-
€2,223 EUR
View
Price under review
Retailer 11
-
€2,265 EUR
View
Price under review
Most Expensive
Friendly Diamonds
3121704 · Nov 4
€2,381 EUR
$2,672 USD
View
Price under review
11 more retailers have this diamond
Prices start from €837 EURSave up to €1,081 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.

B+
1.40ct Marquise
€837 EUR