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Round|Lab Grown|IGI

4.06ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG490174963

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490174963

Diamond specifications and retailer prices

From €543 EUR
$607 USD
As of October 29, 2026
Save €2,786 EUR (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,330 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.06ct lab-grown round diamond

This 4.06ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490174963 or 490174963. Listed at 17 retailers as of October 29, 2026, with prices from €543 to €3,330, a €2,786 spread on the same certified stone. Brilliant Earth lists it at €3,330. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.06
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490174963
Dimensions10.22 × 10.19 × 6.32 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
10.22 mm10.19 mm4.06 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490174963
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.9%

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 29
Current: €3,330 EUR|Low: €522 EUR|High: €3,428 EUR|Avg: €1,280 EUR|-2.6%
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
Retailer 15
October 31, 2026
Retailer 12€543 EUR
Retailer 5€609 EUR
Retailer 15€609 EUR
Retailer 7€674 EUR
Retailer 13€674 EUR
Retailer 10€788 EUR
Retailer 4€952 EUR
Retailer 2€1,024 EUR
Retailer 14€1,034 EUR
Retailer 8€1,052 EUR
Retailer 11€1,672 EUR
Retailer 6€1,772 EUR
Retailer 3€2,129 EUR
Retailer 9€2,941 EUR
Brilliant Earth€3,330 EUR

43 data points across 15 retailers

17 retailers€543 EUR to €3,330 EUR

A
Cheapest Retailer
-
€543 EUR
$607 USD
A
Retailer 2
-
€609 EUR
$680 USD
View
Final sale: no returns
A
Retailer 3
-
€609 EUR
$680 USD
View
A
Retailer 4
-
€674 EUR
$753 USD
View
Retailer 5
-
€674 EUR
$753 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€733 EUR
HK$6,400 HKD
View
A
Retailer 7
-
€788 EUR
$880 USD
View
A
Retailer 8
-
€952 EUR
$1,064 USD
View
A
Retailer 9
-
€1,024 EUR
View
B+
Retailer 10
-
€1,034 EUR
$1,155 USD
View
B+
Retailer 11
-
€1,052 EUR
£925 GBP
View
B+
Retailer 12
-
€1,518 EUR
$1,696 USD
View
B+
Retailer 13
-
€1,672 EUR
$1,868 USD
View
B
Retailer 14
-
€1,772 EUR
$1,980 USD
View
B
Retailer 15
-
€2,129 EUR
SGD 3,214 SGD
View
B
Retailer 16
-
€2,941 EUR
£2,587 GBP
View
Most Expensive
B
Brilliant Earth
19056219A · Oct 29
€3,330 EUR
$3,720 USD
View
16 more retailers have this diamond
Prices start from €543 EURSave up to €2,786 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
4.06ct Round
€543 EUR