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Round|Lab Grown|IGI

3.10ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG620427709

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620427709

Diamond specifications and retailer prices

From €1,124 EUR
As of November 5, 2026
Save €365 EUR (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,489 EUR at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.1ct lab-grown round diamond

This 3.1ct 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 LG620427709 or 620427709. Listed at 3 retailers as of November 5, 2026, with prices from €1,124 to €1,489, a €365 spread on the same certified stone. The Diamond Guys lists it at €1,489. 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

3.10
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620427709
Dimensions9.36 × 9.30 × 5.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.36 mm9.30 mm3.10 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620427709
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: €302 EUR|Low: €225 EUR|High: €3,789 EUR|Avg: €1,185 EUR|+29.6%
Retailer 1
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
The Diamond Guys
September 18, 2026
Retailer 1€302 EUR
Retailer 12€347 EUR
Retailer 7€351 EUR
Retailer 10€486 EUR
Retailer 11€548 EUR
Retailer 8€593 EUR
Retailer 9€616 EUR
Retailer 13€862 EUR
Retailer 2€864 EUR
Retailer 14€932 EUR
Retailer 3€947 EUR
Retailer 5€1,124 EUR
The Diamond Guys€1,489 EUR
Retailer 6€2,373 EUR
Retailer 4€3,789 EUR

66 data points across 15 retailers

3 retailers€1,124 EUR to €1,489 EUR

Retailer 1
-
€347 EUR
Price last confirmed 51 days ago
B+
Retailer 2
-
€1,124 EUR
View
Most Expensive
B
The Diamond Guys
1954434400 · Nov 6
€1,489 EUR
$1,662 USD
View
2 more retailers have this diamond
Prices start from €1,124 EURSave up to €365 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+
3.10ct Round
€1,124 EUR