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Round|Lab Grown|IGI

4.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG659458971

Shape and cutting style on the report: Round brilliant

Certificate IGI LG659458971

Diamond specifications and retailer prices

From €2,137 EUR
$2,387 USD
As of October 31, 2026
Save €12,659 EUR (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €14,796 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.05ct lab-grown round diamond

This 4.05ct lab-grown round 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 LG659458971 or 659458971. Listed at 23 retailers as of October 31, 2026, with prices from €2,137 to €14,796, a €12,659 spread on the same certified stone. Brilliant Earth lists it at €14,796. 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

4.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659458971
Dimensions10.21 × 10.26 × 6.29 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
10.21 mm10.26 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659458971
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.5%

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 31
Current: €14,796 EUR|Low: €2,137 EUR|High: €14,796 EUR|Avg: €4,911 EUR
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 1, 2026
Retailer 6€2,137 EUR
Retailer 5€2,355 EUR
Retailer 10€2,363 EUR
Retailer 7€3,010 EUR
Retailer 14€3,164 EUR
Retailer 13€3,236 EUR
Retailer 9€3,929 EUR
Retailer 11€4,713 EUR
Retailer 2€4,743 EUR
Retailer 3€5,717 EUR
Retailer 12€6,038 EUR
Retailer 4€7,403 EUR
Retailer 8€8,493 EUR
Brilliant Earth€14,796 EUR

44 data points across 14 retailers

23 retailers€2,137 EUR to €14,796 EUR

Retailer 1
-
€1,908 EUR
$2,132 USD
Price last confirmed 21 days ago
Retailer 2
-
€2,077 EUR
$2,320 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
€2,137 EUR
$2,387 USD
View
Final sale: no returns
Retailer 4
-
€2,214 EUR
$2,473 USD
View
Price last confirmed 21 days ago
Retailer 5
-
€2,214 EUR
$2,473 USD
View
Price last confirmed 29 days ago
A
Retailer 6
-
€2,355 EUR
$2,631 USD
View
A
Retailer 7
-
€2,363 EUR
$2,640 USD
View
A
Retailer 8
-
€3,010 EUR
£2,648 GBP
View
Retailer 9
-
€3,043 EUR
$3,400 USD
View
Price last confirmed 24 days ago
A
Retailer 10
-
€3,164 EUR
$3,535 USD
View
A
Retailer 11
-
€3,236 EUR
$3,615 USD
View
A
Retailer 12
-
€3,663 EUR
$4,092 USD
View
A
Retailer 13
-
€3,929 EUR
View
A
Retailer 14
-
€4,713 EUR
ZAR 85,055 ZAR
View
A
Retailer 15
-
€4,743 EUR
A$8,152 AUD
View
B+
Retailer 16
-
€5,717 EUR
$6,387 USD
View
B+
Retailer 17
-
€5,965 EUR
$6,664 USD
View
B+
Retailer 18
-
€6,038 EUR
£5,312 GBP
View
B+
Retailer 19
-
€6,281 EUR
$7,017 USD
View
B+
Retailer 20
-
€7,403 EUR
SGD 11,176 SGD
View
B+
Retailer 21
-
€7,741 EUR
$8,648 USD
View
B+
Retailer 22
-
€8,493 EUR
A$14,597 AUD
View
Most Expensive
B
Brilliant Earth
19018483A · Oct 31
€14,796 EUR
$16,530 USD
View
22 more retailers have this diamond
Prices start from €2,137 EURSave up to €12,659 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
4.05ct Round
€2,137 EUR