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Round|Lab Grown|IGI

3.77ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG644490184

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644490184

Diamond specifications and retailer prices

From €1,224 EUR
CA$1,900 CAD
As of October 30, 2026
Save €396 EUR (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,620 EUR at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.77ct lab-grown round diamond

This 3.77ct 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 LG644490184 or 644490184. Listed at 2 retailers as of October 30, 2026, with prices from €1,224 to €1,620, a €396 spread on the same certified stone. The Diamond Guys lists it at €1,620. 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

3.77
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644490184
Dimensions10.14 × 10.09 × 6.06 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
10.14 mm10.09 mm3.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644490184
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 59.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,967 EUR|Low: €243 EUR|High: €4,601 EUR|Avg: €1,343 EUR|-4.4%
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€660 EUR
Retailer 7€723 EUR
Retailer 10€800 EUR
Retailer 12€817 EUR
Retailer 9€947 EUR
Retailer 6€963 EUR
Retailer 5€1,012 EUR
Retailer 8€1,224 EUR
Retailer 3€1,566 EUR
The Diamond Guys€1,620 EUR
Retailer 1€1,967 EUR
Retailer 11€2,524 EUR
Retailer 2€4,601 EUR

56 data points across 13 retailers

2 retailers€1,224 EUR to €1,620 EUR

B+
Cheapest Retailer
-
€1,224 EUR
CA$1,900 CAD
Most Expensive
B
The Diamond Guys
1954434359 · Nov 1
€1,620 EUR
$1,810 USD
View
1 more retailer has this diamond
Prices start from €1,224 EURSave up to €396 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+
3.77ct Round
€1,224 EUR