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Round|Lab Grown|IGI

4.03ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818658820

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818658820

Diamond specifications and retailer prices

From €2,577 EUR
$2,879 USD
As of October 29, 2026
Save €7,838 EUR (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €10,415 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.03ct lab-grown round diamond

This 4.03ct lab-grown round 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 LG818658820 or 818658820. Listed at 21 retailers as of October 29, 2026, with prices from €2,577 to €10,415, a €7,838 spread on the same certified stone. Taylor and Hart lists it at €10,415. 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

4.03
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658820
Dimensions10.23 × 10.28 × 6.32 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.23 mm10.28 mm4.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658820
Side View
Table 55.0%Crown 33.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.7%

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 29
Current: €2,934 EUR|Low: €2,577 EUR|High: €11,099 EUR|Avg: €5,191 EUR|-7.3%
Retailer 1
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 17
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Retailer 19
Taylor and Hart
November 1, 2026
Retailer 8€2,577 EUR
Retailer 14€2,803 EUR
Retailer 5€2,886 EUR
Retailer 1€2,934 EUR
Retailer 13€2,990 EUR
Retailer 18€2,990 EUR
Retailer 9€3,084 EUR
Retailer 3€3,853 EUR
Retailer 15€3,869 EUR
Retailer 12€4,023 EUR
Retailer 2€4,109 EUR
Retailer 7€4,493 EUR
Retailer 17€4,760 EUR
Retailer 16€6,363 EUR
Retailer 11€6,431 EUR
Retailer 4€7,154 EUR
Retailer 6€7,831 EUR
Retailer 10€8,085 EUR
Retailer 19€8,315 EUR
Taylor and Hart€10,415 EUR

25 data points across 20 retailers

21 retailers€2,577 EUR to €10,415 EUR

A
Cheapest Retailer
-
€2,577 EUR
$2,879 USD
A
Retailer 2
-
€2,803 EUR
$3,132 USD
View
A
Retailer 3
-
€2,886 EUR
$3,224 USD
View
Final sale: no returns
A
Retailer 4
-
€2,934 EUR
£2,581 GBP
View
A
Retailer 5
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€2,990 EUR
$3,340 USD
View
A
Retailer 6
-
€2,990 EUR
$3,340 USD
View
A
Retailer 7
-
€3,084 EUR
$3,445 USD
View
Retailer 8
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€3,186 EUR
$3,559 USD
View
Price last confirmed 21 days ago
A
Retailer 9
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€3,853 EUR
$4,305 USD
View
A
Retailer 10
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€3,869 EUR
$4,323 USD
View
A
Retailer 11
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€4,023 EUR
£3,539 GBP
View
A
Retailer 12
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€4,109 EUR
$4,591 USD
View
A
Retailer 13
-
€4,493 EUR
$5,020 USD
View
A
Retailer 14
-
€4,760 EUR
View
B+
Retailer 15
-
€6,363 EUR
ZAR 114,849 ZAR
View
Retailer 16
-
€6,431 EUR
$7,185 USD
View
Price last confirmed 14 days ago
B+
Retailer 17
-
€7,154 EUR
$7,992 USD
View
B+
Retailer 18
-
€7,831 EUR
$8,749 USD
View
B+
Retailer 19
-
€8,085 EUR
£7,112 GBP
View
B+
Retailer 20
-
€8,315 EUR
$9,290 USD
View
Most Expensive
B
Taylor and Hart
YB4GNG4 · Oct 31
€10,415 EUR
$11,636 USD
View
20 more retailers have this diamond
Prices start from €2,577 EURSave up to €7,838 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
4.03ct Round
€2,577 EUR