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Marquise|Lab Grown|IGI

4.31ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG793603302

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG793603302

Diamond specifications and retailer prices

From €7,902 EUR
$8,828 USD
As of October 27, 2026
Save €21,073 EUR (73%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €28,975 EUR at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 4.31ct lab-grown marquise diamond

This 4.31ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG793603302 or 793603302. Listed at 24 retailers as of October 26, 2026, with prices from €7,902 to €28,975, a €21,073 spread on the same certified stone. Taylor and Hart lists it at €28,975. 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

4.31
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG793603302
Dimensions16.79 × 8.65 × 5.23 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.79 mm8.65 mm4.31 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG793603302
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

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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: Oct 27
Current: €14,541 EUR|Low: €7,585 EUR|High: €46,186 EUR|Avg: €15,707 EUR|-3.5%
Retailer 1
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Retailer 23
Taylor and Hart
October 27, 2026
Retailer 22€7,902 EUR
Retailer 4€8,218 EUR
Retailer 20€8,242 EUR
Retailer 14€8,389 EUR
Retailer 9€8,458 EUR
Retailer 11€9,076 EUR
Retailer 6€9,092 EUR
Retailer 2€9,166 EUR
Retailer 3€10,308 EUR
Retailer 23€10,474 EUR
Retailer 5€10,637 EUR
Retailer 12€11,003 EUR
Retailer 7€13,136 EUR
Retailer 10€14,521 EUR
Retailer 1€14,541 EUR
Retailer 19€14,760 EUR
Retailer 17€16,710 EUR
Retailer 18€19,433 EUR
Retailer 21€20,752 EUR
Retailer 15€20,837 EUR
Retailer 8€23,934 EUR
Retailer 16€25,529 EUR
Taylor and Hart€28,975 EUR
Retailer 13€46,186 EUR

33 data points across 24 retailers

24 retailers€7,902 EUR to €28,975 EUR

A
Cheapest Retailer
-
€7,902 EUR
$8,828 USD
Retailer 2
-
€8,218 EUR
$9,181 USD
View
Price last confirmed 8 days ago
A
Retailer 3
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€8,242 EUR
$9,208 USD
View
A
Retailer 4
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€8,389 EUR
CA$13,017 CAD
View
A
Retailer 5
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€8,458 EUR
$9,449 USD
View
A
Retailer 6
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€9,076 EUR
$10,140 USD
View
A
Retailer 7
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€9,092 EUR
$10,158 USD
View
Retailer 8
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€9,166 EUR
$10,240 USD
View
Price last confirmed 7 days ago
Retailer 9
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€9,166 EUR
$10,240 USD
View
Price last confirmed 16 days ago
Retailer 10
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€10,308 EUR
$11,516 USD
View
Price last confirmed 7 days ago
A
Retailer 11
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€10,474 EUR
$11,702 USD
View
A
Retailer 12
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€11,003 EUR
£9,679 GBP
View
B+
Retailer 13
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€13,136 EUR
£11,556 GBP
View
Retailer 14
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€14,428 EUR
$16,119 USD
View
Price last confirmed 11 days ago
B+
Retailer 15
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€14,541 EUR
View
B+
Retailer 16
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€14,760 EUR
$16,490 USD
View
B+
Retailer 17
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€16,710 EUR
£14,700 GBP
View
Retailer 18
-
€19,433 EUR
ZAR 350,735 ZAR
View
Price last confirmed 7 days ago
B
Retailer 19
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€20,752 EUR
$23,184 USD
View
B
Retailer 20
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€20,837 EUR
$23,279 USD
View
Retailer 21
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€23,934 EUR
$26,739 USD
View
Price last confirmed 8 days ago
B
Retailer 22
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€25,529 EUR
$28,521 USD
View
Most Expensive
B
Taylor and Hart
8PB1PC0 · Oct 26
€28,975 EUR
$32,371 USD
View
22 more retailers have this diamond
Prices start from €7,902 EURSave up to €21,073 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
4.31ct Marquise
€7,902 EUR