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Round|Lab Grown|IGI

3.65ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG646449350

Shape and cutting style on the report: Round brilliant

Certificate IGI LG646449350

Diamond specifications and retailer prices

From €1,166 EUR
CA$1,809 CAD
As of October 30, 2026
Save €377 EUR (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,542 EUR at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.65ct lab-grown round diamond

This 3.65ct 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 LG646449350 or 646449350. Listed at 2 retailers as of October 30, 2026, with prices from €1,166 to €1,542, a €377 spread on the same certified stone. The Diamond Guys lists it at €1,542. 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

3.65
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646449350
Dimensions10.00 × 9.95 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.00 mm9.95 mm3.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646449350
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: €4,449 EUR|Low: €236 EUR|High: €4,449 EUR|Avg: €1,226 EUR|+56.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
August 3, 2026
Retailer 4€642 EUR
Retailer 7€693 EUR
Retailer 11€782 EUR
Retailer 2€795 EUR
Retailer 8€906 EUR
Retailer 10€960 EUR
Retailer 6€981 EUR
Retailer 9€1,166 EUR
Retailer 3€1,517 EUR
The Diamond Guys€1,542 EUR
Retailer 5€1,911 EUR
Retailer 12€2,453 EUR
Retailer 1€4,449 EUR

60 data points across 13 retailers

2 retailers€1,166 EUR to €1,542 EUR

B+
Cheapest Retailer
-
€1,166 EUR
CA$1,809 CAD
Most Expensive
B
The Diamond Guys
1954434384 · Nov 1
€1,542 EUR
$1,723 USD
View
1 more retailer has this diamond
Prices start from €1,166 EURSave up to €377 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+
3.65ct Round
€1,166 EUR