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Round|Lab Grown|IGI

3.11ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG706512306

Shape and cutting style on the report: Round brilliant

Certificate IGI LG706512306

Diamond specifications and retailer prices

From €357 EUR
As of November 5, 2026
Save €1,586 EUR (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,944 EUR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.11ct lab-grown round diamond

This 3.11ct 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 LG706512306 or 706512306. Listed at 16 retailers as of November 5, 2026, with prices from €357 to €1,944, a €1,586 spread on the same certified stone. Brilliant Earth lists it at €1,944. 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

3.11
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706512306
Dimensions9.32 × 9.34 × 5.79 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
9.32 mm9.34 mm3.11 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706512306
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 41°Culet: NoneDepth 62.1%

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 5
Current: €1,944 EUR|Low: €335 EUR|High: €1,944 EUR|Avg: €862 EUR
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
November 6, 2026
Retailer 13€357 EUR
Retailer 6€400 EUR
Retailer 7€443 EUR
Retailer 15€443 EUR
Retailer 10€573 EUR
Retailer 8€613 EUR
Retailer 2€692 EUR
Retailer 14€702 EUR
Retailer 9€714 EUR
Retailer 3€785 EUR
Retailer 5€891 EUR
Retailer 11€1,077 EUR
Retailer 4€1,424 EUR
Retailer 12€1,730 EUR
Brilliant Earth€1,944 EUR

37 data points across 15 retailers

16 retailers€357 EUR to €1,944 EUR

A
Cheapest Retailer
-
€357 EUR
A
Retailer 2
-
€400 EUR
View
Retailer 3
-
€443 EUR
View
Price last confirmed 12 days ago
A
Retailer 4
-
€443 EUR
View
A
Retailer 5
-
€573 EUR
View
A
Retailer 6
-
€613 EUR
View
A
Retailer 7
-
€692 EUR
View
B+
Retailer 8
-
€702 EUR
View
A
Retailer 9
-
€714 EUR
View
A
Retailer 10
-
€785 EUR
View
B+
Retailer 11
-
€891 EUR
View
B+
Retailer 12
-
€1,077 EUR
View
B
Retailer 13
-
€1,424 EUR
View
Retailer 14
-
€1,679 EUR
View
Price last confirmed 40 days ago
B
Retailer 15
-
€1,730 EUR
View
Most Expensive
B
Brilliant Earth
18656417A · Nov 5
€1,944 EUR
$2,170 USD
View
15 more retailers have this diamond
Prices start from €357 EURSave up to €1,586 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
3.11ct Round
€357 EUR