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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 $607 USD
As of October 29, 2026
Save $3,113 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,720 USD 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 $607 to $3,720, a $3,113 spread on the same certified stone. Brilliant Earth lists it at $3,720. 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: $3,720 USD|Low: $583 USD|High: $3,830 USD|Avg: $1,484 USD|-2.9%
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 30, 2026
Retailer 12$607 USD
Retailer 5$680 USD
Retailer 15$680 USD
Retailer 7$753 USD
Retailer 13$753 USD
Retailer 10$880 USD
Retailer 4$1,064 USD
Retailer 9$1,147 USD
Retailer 14$1,155 USD
Retailer 2$1,175 USD
Retailer 11$1,868 USD
Retailer 6$1,980 USD
Retailer 3$2,378 USD
Retailer 8$3,285 USD
Brilliant Earth$3,720 USD

43 data points across 15 retailers

17 retailers$607 USD to $3,720 USD

A
Cheapest Retailer
-
$607 USD
A
Retailer 2
-
$680 USD
View
Final sale: no returns
A
Retailer 3
-
$680 USD
View
A
Retailer 4
-
$753 USD
View
Retailer 5
-
$753 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$819 USD
HK$6,400 HKD
View
A
Retailer 7
-
$880 USD
View
A
Retailer 8
-
$1,064 USD
View
A
Retailer 9
-
$1,147 USD
€1,092 EUR
View
B+
Retailer 10
-
$1,155 USD
View
B+
Retailer 11
-
$1,175 USD
£925 GBP
View
B+
Retailer 12
-
$1,696 USD
View
B+
Retailer 13
-
$1,868 USD
View
B
Retailer 14
-
$1,980 USD
View
B
Retailer 15
-
$2,378 USD
SGD 3,214 SGD
View
B
Retailer 16
-
$3,285 USD
£2,587 GBP
View
Most Expensive
B
Brilliant Earth
19056219A · Oct 29
$3,720 USD
View
16 more retailers have this diamond
Prices start from $607 USDSave up to $3,113 USD

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
$607 USD