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Round|Lab Grown|IGI

3.57ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG655442262

Shape and cutting style on the report: Round brilliant

Certificate IGI LG655442262

Diamond specifications and retailer prices

From €358 EUR
$401 USD
As of November 1, 2026
Save €1,386 EUR (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,744 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 3.57ct lab-grown round diamond

This 3.57ct 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 LG655442262 or 655442262. Listed at 15 retailers as of October 29, 2026, with prices from €358 to €1,744, a €1,386 spread on the same certified stone. MOH London lists it at €1,744. 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

3.57
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655442262
Dimensions9.89 × 9.87 × 5.99 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
9.89 mm9.87 mm3.57 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655442262
Side View
Table 58.0%Crown 34.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.6%

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 1
Current: €1,744 EUR|Low: €358 EUR|High: €4,485 EUR|Avg: €1,403 EUR
MOH London
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 12€358 EUR
Retailer 6€401 EUR
Retailer 16€444 EUR
Retailer 17€491 EUR
Retailer 13€575 EUR
Retailer 2€617 EUR
Retailer 4€703 EUR
Retailer 14€705 EUR
Retailer 10€727 EUR
Retailer 15€737 EUR
Retailer 3€1,161 EUR
Retailer 11€1,245 EUR
Retailer 5€1,427 EUR
MOH London€1,744 EUR
Retailer 7€2,305 EUR
Retailer 8€4,362 EUR
Retailer 9€4,485 EUR

7 data points across 17 retailers

15 retailers€358 EUR to €1,744 EUR

A
Cheapest Retailer
-
€358 EUR
$401 USD
A
Retailer 2
-
€401 EUR
$450 USD
View
A
Retailer 3
-
€444 EUR
$498 USD
View
A
Retailer 4
-
€491 EUR
HK$4,300 HKD
View
A
Retailer 5
-
€575 EUR
$645 USD
View
A
Retailer 6
-
€617 EUR
£545 GBP
View
B+
Retailer 7
-
€703 EUR
$788 USD
View
A
Retailer 8
-
€705 EUR
View
A
Retailer 9
-
€727 EUR
£642 GBP
View
A
Retailer 10
-
€737 EUR
$827 USD
View
B+
Retailer 11
-
€1,161 EUR
$1,302 USD
View
B+
Retailer 12
-
€1,245 EUR
$1,396 USD
View
B+
Retailer 13
-
€1,427 EUR
$1,600 USD
View
B
Retailer 14
-
€1,703 EUR
$1,910 USD
View
Most Expensive
B
MOH London
LG655442262 · Oct 29
€1,744 EUR
£1,540 GBP
View
14 more retailers have this diamond
Prices start from €358 EURSave up to €1,386 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
3.57ct Round
€358 EUR