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Marquise|Lab Grown|IGI

3.51ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG843641551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843641551

Diamond specifications and retailer prices

From €635 EUR
£561 GBP
As of October 27, 2026
Save €2,369 EUR (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,005 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843641551 or 843641551. Listed at 13 retailers as of October 27, 2026, with prices from €635 to €3,005, a €2,369 spread on the same certified stone. Brilliant Earth lists it at €3,005. 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

3.51
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843641551
Dimensions15.66 × 7.75 × 4.87 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.66 mm7.75 mm3.51 ctF / VS2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG843641551
Side View
Table 59.0%Crown 35.3°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €3,005 EUR|Low: €478 EUR|High: €5,020 EUR|Avg: €1,559 EUR|-40.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 3€478 EUR
Retailer 9€635 EUR
Retailer 8€655 EUR
Retailer 6€709 EUR
Retailer 11€791 EUR
Retailer 10€874 EUR
Retailer 7€1,174 EUR
Retailer 2€1,209 EUR
Retailer 4€1,728 EUR
Retailer 14€1,824 EUR
Retailer 13€1,858 EUR
Retailer 12€1,948 EUR
Retailer 5€2,412 EUR
Brilliant Earth€3,005 EUR

13 data points across 14 retailers

13 retailers€635 EUR to €3,005 EUR

A
Cheapest Retailer
-
€635 EUR
£561 GBP
Retailer 2
-
€655 EUR
$735 USD
View
Price last confirmed 5 days ago
B+
Retailer 3
-
€709 EUR
$795 USD
View
A
Retailer 4
-
€791 EUR
View
A
Retailer 5
-
€874 EUR
£772 GBP
View
A
Retailer 6
-
€1,174 EUR
$1,317 USD
View
A
Retailer 7
-
€1,209 EUR
$1,356 USD
View
B+
Retailer 8
-
€1,728 EUR
$1,938 USD
View
B+
Retailer 9
-
€1,824 EUR
$2,046 USD
View
Retailer 10
-
€1,858 EUR
$2,084 USD
View
Price last confirmed 8 days ago
Retailer 11
-
€1,948 EUR
£1,720 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
€2,412 EUR
$2,705 USD
View
Most Expensive
B
Brilliant Earth
22183942A · Nov 2
€3,005 EUR
$3,370 USD
View
12 more retailers have this diamond
Prices start from €635 EURSave up to €2,369 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
3.51ct Marquise
€635 EUR