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Round|Lab Grown|IGI

3.77ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG644484316

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644484316

Diamond specifications and retailer prices

From €1,179 EUR
CA$1,837 CAD
As of November 2, 2026
Save €380 EUR (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,559 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 LG644484316 or 644484316. Listed at 2 retailers as of November 1, 2026, with prices from €1,179 to €1,559, a €380 spread on the same certified stone. The Diamond Guys lists it at €1,559. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644484316
Dimensions10.13 × 10.10 × 6.07 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
10.13 mm10.10 mm3.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644484316
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

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: Nov 2
Current: €985 EUR|Low: €235 EUR|High: €4,583 EUR|Avg: €1,312 EUR|-7.0%
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€641 EUR
Retailer 7€698 EUR
Retailer 10€783 EUR
Retailer 12€792 EUR
Retailer 9€954 EUR
Retailer 6€958 EUR
Retailer 1€985 EUR
Retailer 8€1,179 EUR
Retailer 2€1,529 EUR
The Diamond Guys€1,559 EUR
Retailer 3€2,081 EUR
Retailer 11€2,434 EUR
Retailer 5€4,583 EUR

58 data points across 13 retailers

2 retailers€1,179 EUR to €1,559 EUR

B+
Cheapest Retailer
-
€1,179 EUR
CA$1,837 CAD
Most Expensive
B
The Diamond Guys
1954434358 · Nov 1
€1,559 EUR
$1,749 USD
View
1 more retailer has this diamond
Prices start from €1,179 EURSave up to €380 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
€1,179 EUR