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Marquise|Lab Grown|IGI

3.77ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG812626920

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812626920

Diamond specifications and retailer prices

From €519 EUR
$582 USD
As of November 1, 2026
Save €399 EUR (43%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €2,844 EUR at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 3.77ct lab-grown marquise diamond

This 3.77ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812626920 or 812626920. Listed at 3 retailers as of November 1, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.77
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812626920
Dimensions17.06 × 8.15 × 4.95 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
17.06 mm8.15 mm3.77 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812626920
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €2,844 EUR|Low: €514 EUR|High: €2,889 EUR|Avg: €1,472 EUR|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3€519 EUR
Retailer 4€867 EUR
Retailer 2€918 EUR
Retailer 5€1,866 EUR
Rare Carat€2,844 EUR

38 data points across 5 retailers

3 retailers€519 EUR to €918 EUR

A
Cheapest Retailer
-
€519 EUR
$582 USD
Final sale: no returns
A
Retailer 2
-
€918 EUR
£811 GBP
View
Most Expensive
Rare Carat
812626920 · Oct 18
€2,844 EUR
$3,190 USD
View
Price last confirmed 15 days ago
2 more retailers have this diamond
Prices start from €519 EURSave up to €399 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
3.77ct Marquise
€519 EUR