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Marquise|Lab Grown|IGI

4.01ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG690509443

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG690509443

Diamond specifications and retailer prices

From €4,964 EUR
$5,546 USD
As of October 30, 2026
Save €15,390 EUR (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €20,354 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.01ct lab-grown marquise diamond

This 4.01ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG690509443 or 690509443. Listed at 23 retailers as of October 30, 2026, with prices from €4,964 to €20,354, a €15,390 spread on the same certified stone. Taylor and Hart lists it at €20,354. 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

4.01
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG690509443
Dimensions17.57 × 8.38 × 4.92 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.57 mm8.38 mm4.01 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG690509443
Side View
Table 60.0%Crown 31.5°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €5,855 EUR|Low: €3,971 EUR|High: €20,354 EUR|Avg: €9,288 EUR
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Taylor and Hart
October 31, 2026
Retailer 5€4,964 EUR
Retailer 7€5,328 EUR
Retailer 8€5,560 EUR
Retailer 6€5,759 EUR
Retailer 3€5,764 EUR
Retailer 1€5,855 EUR
Retailer 2€6,709 EUR
Retailer 17€6,776 EUR
Retailer 13€7,370 EUR
Retailer 10€7,417 EUR
Retailer 18€7,523 EUR
Retailer 9€8,185 EUR
Retailer 14€9,595 EUR
Retailer 16€10,311 EUR
Retailer 11€10,965 EUR
Retailer 15€11,781 EUR
Retailer 12€12,257 EUR
Retailer 4€13,331 EUR
Taylor and Hart€20,354 EUR

40 data points across 19 retailers

23 retailers€4,964 EUR to €20,354 EUR

A
Cheapest Retailer
-
€4,964 EUR
$5,546 USD
A
Retailer 2
-
€5,203 EUR
$5,813 USD
View
A
Retailer 3
-
€5,328 EUR
$5,952 USD
View
A
Retailer 4
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€5,560 EUR
$6,212 USD
View
Final sale: no returns
A
Retailer 5
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€5,759 EUR
$6,434 USD
View
Retailer 6
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€5,759 EUR
$6,434 USD
View
Price last confirmed 15 days ago
A
Retailer 7
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€5,764 EUR
$6,440 USD
View
A
Retailer 8
-
€5,855 EUR
$6,541 USD
View
A
Retailer 9
-
€6,709 EUR
$7,495 USD
View
A
Retailer 10
-
€6,776 EUR
$7,570 USD
View
A
Retailer 11
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€6,837 EUR
$7,638 USD
View
A
Retailer 12
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€7,370 EUR
£6,483 GBP
View
Retailer 13
-
€7,523 EUR
$8,405 USD
View
Price last confirmed 10 days ago
A
Retailer 14
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€8,185 EUR
£7,200 GBP
View
A
Retailer 15
-
€9,595 EUR
View
A
Retailer 16
-
€10,311 EUR
$11,519 USD
View
A
Retailer 17
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€10,965 EUR
$12,250 USD
View
B+
Retailer 18
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€11,781 EUR
£10,364 GBP
View
B+
Retailer 19
-
€12,257 EUR
ZAR 221,216 ZAR
View
Retailer 20
-
€13,331 EUR
A$22,913 AUD
View
Price last confirmed 23 days ago
B
Retailer 21
-
€14,613 EUR
$16,326 USD
View
B+
Retailer 22
-
€16,017 EUR
$17,895 USD
View
Most Expensive
B
Taylor and Hart
54DGRTY · Oct 30
€20,354 EUR
$22,740 USD
View
22 more retailers have this diamond
Prices start from €4,964 EURSave up to €15,390 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
4.01ct Marquise
€4,964 EUR