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Round|Lab Grown|IGI

3.56ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG634434828

Shape and cutting style on the report: Round brilliant

Certificate IGI LG634434828

Diamond specifications and retailer prices

From €646 EUR
$725 USD
As of November 2, 2026
Save €1,823 EUR (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,470 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.56ct lab-grown round diamond

This 3.56ct 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 LG634434828 or 634434828. Listed at 14 retailers as of November 2, 2026, with prices from €646 to €2,470, a €1,823 spread on the same certified stone. Brilliant Earth lists it at €2,470. 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

3.56
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634434828
Dimensions9.90 × 9.83 × 6.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.90 mm9.83 mm3.56 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634434828
Side View
Table 57.0%Crown 34.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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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 2
Current: €2,470 EUR|Low: €446 EUR|High: €2,603 EUR|Avg: €1,140 EUR|-5.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4€446 EUR
Retailer 3€629 EUR
Retailer 6€646 EUR
Retailer 2€755 EUR
Retailer 12€816 EUR
Retailer 5€865 EUR
Retailer 10€872 EUR
Retailer 11€1,177 EUR
Retailer 7€1,406 EUR
Retailer 8€1,685 EUR
Retailer 9€1,931 EUR
Brilliant Earth€2,470 EUR

36 data points across 12 retailers

14 retailers€646 EUR to €2,470 EUR

Retailer 1
-
€359 EUR
$403 USD
Price last confirmed 40 days ago
Retailer 2
-
€403 EUR
$452 USD
View
Price last confirmed 40 days ago
Retailer 3
-
€440 EUR
$494 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
€646 EUR
$725 USD
View
A
Retailer 5
-
€755 EUR
View
B+
Retailer 6
-
€816 EUR
$915 USD
View
A
Retailer 7
-
€865 EUR
£764 GBP
View
A
Retailer 8
-
€872 EUR
$978 USD
View
B+
Retailer 9
-
€1,177 EUR
$1,320 USD
View
B
Retailer 10
-
€1,406 EUR
$1,577 USD
View
Retailer 11
-
€1,434 EUR
$1,608 USD
View
Price last confirmed 37 days ago
B
Retailer 12
-
€1,685 EUR
$1,890 USD
View
Retailer 13
-
€1,931 EUR
£1,705 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
10434013A · Nov 2
€2,470 EUR
$2,770 USD
View
13 more retailers have this diamond
Prices start from €646 EURSave up to €1,823 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
3.56ct Round
€646 EUR