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 $477 USD
As of October 26, 2026
Save $2,993 USD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,470 USD 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 $477 to $3,470, a $2,993 spread on the same certified stone. Brilliant Earth lists it at $3,470. 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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Price History

Last verified: Oct 26
Current: $3,470 USD|Low: $469 USD|High: $3,470 USD|Avg: $1,338 USD
Brilliant Earth
Retailer 2
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Retailer 19
October 31, 2026
Retailer 18$477 USD
Retailer 6$533 USD
Retailer 7$534 USD
Retailer 3$591 USD
Retailer 2$653 USD
Retailer 8$790 USD
Retailer 12$862 USD
Retailer 4$917 USD
Retailer 17$922 USD
Retailer 15$925 USD
Retailer 16$972 USD
Retailer 9$1,312 USD
Retailer 14$1,358 USD
Retailer 19$1,563 USD
Retailer 13$1,872 USD
Retailer 5$1,900 USD
Retailer 11$2,510 USD
Retailer 10$2,655 USD
Brilliant Earth$3,470 USD

32 data points across 19 retailers

18 retailers$477 USD to $3,470 USD

A
Cheapest Retailer
-
$477 USD
Retailer 2
-
$534 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$591 USD
View
A
Retailer 4
-
$653 USD
HK$5,100 HKD
View
Retailer 5
-
$790 USD
£622 GBP
View
Price last confirmed 7 days ago
A
Retailer 6
-
$862 USD
€821 EUR
View
A
Retailer 7
-
$917 USD
View
B+
Retailer 8
-
$922 USD
View
B+
Retailer 9
-
$925 USD
View
A
Retailer 10
-
$972 USD
£765 GBP
View
B+
Retailer 11
-
$1,312 USD
A$2,018 AUD
View
B+
Retailer 12
-
$1,358 USD
View
B+
Retailer 13
-
$1,563 USD
View
B+
Retailer 14
-
$1,872 USD
SGD 2,530 SGD
View
Retailer 15
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$1,900 USD
View
Price last confirmed 7 days ago
Retailer 16
-
$2,510 USD
£1,976 GBP
View
Price last confirmed 10 days ago
Retailer 17
-
$2,655 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
20319657A · Oct 31
$3,470 USD
View
17 more retailers have this diamond
Prices start from $477 USDSave up to $2,993 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
3.81ct Round
$477 USD