CaratHunter
Plans
Round|Lab Grown|IGI

3.81ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG646479326

Shape and cutting style on the report: Round brilliant

Certificate IGI LG646479326

Diamond specifications and retailer prices

From €1,212 EUR
CA$1,889 CAD
As of November 2, 2026
Save €391 EUR (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,603 EUR at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.81ct lab-grown round diamond

This 3.81ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG646479326 or 646479326. Listed at 2 retailers as of November 1, 2026, with prices from €1,212 to €1,603, a €391 spread on the same certified stone. The Diamond Guys lists it at €1,603. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646479326
Dimensions10.09 × 10.05 × 6.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.09 mm10.05 mm3.81 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646479326
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €1,008 EUR|Low: €245 EUR|High: €2,969 EUR|Avg: €1,155 EUR|-8.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
August 3, 2026
Retailer 3€664 EUR
Retailer 5€720 EUR
Retailer 8€803 EUR
Retailer 10€823 EUR
Retailer 7€952 EUR
Retailer 4€978 EUR
Retailer 1€1,008 EUR
Retailer 6€1,212 EUR
Retailer 11€1,560 EUR
The Diamond Guys€1,603 EUR
Retailer 2€2,104 EUR
Retailer 9€2,541 EUR

60 data points across 12 retailers

2 retailers€1,212 EUR to €1,603 EUR

B+
Cheapest Retailer
-
€1,212 EUR
CA$1,889 CAD
Most Expensive
B
The Diamond Guys
1954434351 · Nov 1
€1,603 EUR
$1,798 USD
View
1 more retailer has this diamond
Prices start from €1,212 EURSave up to €391 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.

B+
3.81ct Round
€1,212 EUR