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Round|Lab Grown|IGI

3.81ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG812619681

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812619681

Diamond specifications and retailer prices

From €427 EUR
$477 USD
As of October 26, 2026
Save €2,679 EUR (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €3,106 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.81ct lab-grown round diamond

This 3.81ct 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 LG812619681 or 812619681. Listed at 18 retailers as of October 26, 2026, with prices from €427 to €3,106, a €2,679 spread on the same certified stone. Brilliant Earth lists it at €3,106. 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

3.81
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812619681
Dimensions10.10 × 10.04 × 6.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.10 mm10.04 mm3.81 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812619681
Side View
Table 60.0%Crown 33.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.5%

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 26
Current: €3,106 EUR|Low: €420 EUR|High: €3,106 EUR|Avg: €1,197 EUR
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 19
October 31, 2026
Retailer 18€427 EUR
Retailer 6€477 EUR
Retailer 7€478 EUR
Retailer 3€529 EUR
Retailer 2€584 EUR
Retailer 8€707 EUR
Retailer 12€772 EUR
Retailer 4€821 EUR
Retailer 17€825 EUR
Retailer 15€828 EUR
Retailer 16€870 EUR
Retailer 9€1,174 EUR
Retailer 14€1,216 EUR
Retailer 19€1,399 EUR
Retailer 13€1,676 EUR
Retailer 5€1,701 EUR
Retailer 11€2,246 EUR
Retailer 10€2,376 EUR
Brilliant Earth€3,106 EUR

32 data points across 19 retailers

18 retailers€427 EUR to €3,106 EUR

A
Cheapest Retailer
-
€427 EUR
$477 USD
Retailer 2
-
€478 EUR
$534 USD
View
Price last confirmed 8 days ago
Retailer 3
-
€529 EUR
$591 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€584 EUR
HK$5,100 HKD
View
Retailer 5
-
€707 EUR
£622 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
€772 EUR
View
A
Retailer 7
-
€821 EUR
$917 USD
View
B+
Retailer 8
-
€825 EUR
$922 USD
View
B+
Retailer 9
-
€828 EUR
$925 USD
View
A
Retailer 10
-
€870 EUR
£765 GBP
View
B+
Retailer 11
-
€1,174 EUR
A$2,018 AUD
View
B+
Retailer 12
-
€1,216 EUR
$1,358 USD
View
B+
Retailer 13
-
€1,399 EUR
$1,563 USD
View
B+
Retailer 14
-
€1,676 EUR
SGD 2,530 SGD
View
Retailer 15
-
€1,701 EUR
$1,900 USD
View
Price last confirmed 8 days ago
Retailer 16
-
€2,246 EUR
£1,976 GBP
View
Price last confirmed 11 days ago
Retailer 17
-
€2,376 EUR
$2,655 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
20319657A · Oct 31
€3,106 EUR
$3,470 USD
View
17 more retailers have this diamond
Prices start from €427 EURSave up to €2,679 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
3.81ct Round
€427 EUR