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Round|Lab Grown|IGI

3.81ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG828668903

Shape and cutting style on the report: Round brilliant

Certificate IGI LG828668903

Diamond specifications and retailer prices

From €345 EUR
$387 USD
As of November 1, 2026
Save €1,451 EUR (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,797 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

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 LG828668903 or 828668903. Listed at 9 retailers as of October 28, 2026, with prices from €345 to €1,797, a €1,451 spread on the same certified stone. Rare Carat lists it at €1,797. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828668903
Dimensions10.07 × 10.05 × 6.07 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.07 mm10.05 mm3.81 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828668903
Side View
Table 61.0%Crown 33.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
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: Nov 1
Current: €1,797 EUR|Low: €345 EUR|High: €1,823 EUR|Avg: €1,071 EUR|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9€345 EUR
Retailer 7€386 EUR
Retailer 5€598 EUR
Retailer 3€682 EUR
Retailer 6€1,200 EUR
Retailer 4€1,204 EUR
Retailer 8€1,375 EUR
Retailer 2€1,671 EUR
Rare Carat€1,797 EUR

21 data points across 9 retailers

9 retailers€345 EUR to €1,797 EUR

A
Cheapest Retailer
-
€345 EUR
$387 USD
A
Retailer 2
-
€386 EUR
$433 USD
View
Retailer 3
-
€598 EUR
£528 GBP
View
Price last confirmed 16 days ago
A
Retailer 4
-
€682 EUR
View
B+
Retailer 5
-
€1,200 EUR
$1,346 USD
View
B
Retailer 6
-
€1,204 EUR
$1,350 USD
View
B+
Retailer 7
-
€1,375 EUR
$1,542 USD
View
B+
Retailer 8
-
€1,671 EUR
£1,476 GBP
View
Most Expensive
B
Rare Carat
LGRD30-137515 · Oct 28
€1,797 EUR
$2,015 USD
View
8 more retailers have this diamond
Prices start from €345 EURSave up to €1,451 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
€345 EUR