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Round|Lab Grown|IGI

3.70ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG645453866

Shape and cutting style on the report: Round brilliant

Certificate IGI LG645453866

Diamond specifications and retailer prices

From $1,814 CAD
As of October 30, 2026
Save $585 CAD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,398 CAD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.7ct lab-grown round diamond

This 3.7ct 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 LG645453866 or 645453866. Listed at 2 retailers as of October 30, 2026, with prices from $1,814 to $2,398, a $585 spread on the same certified stone. The Diamond Guys lists it at $2,398. 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

3.70
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645453866
Dimensions10.04 × 9.98 × 6.04 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
10.04 mm9.98 mm3.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645453866
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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: $1,522 CAD|Low: $362 CAD|High: $7,040 CAD|Avg: $2,102 CAD|-6.9%
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$989 CAD
Retailer 5$1,073 CAD
Retailer 10$1,210 CAD
Retailer 12$1,218 CAD
Retailer 6$1,449 CAD
Retailer 9$1,468 CAD
Retailer 1$1,522 CAD
Retailer 7$1,814 CAD
Retailer 2$2,326 CAD
The Diamond Guys$2,398 CAD
Retailer 3$3,115 CAD
Retailer 11$3,744 CAD
Retailer 8$7,040 CAD

58 data points across 13 retailers

2 retailers$1,814 CAD to $2,398 CAD

B+
Cheapest Retailer
-
$1,814 CAD
Most Expensive
B
The Diamond Guys
1954434371 · Oct 30
$2,398 CAD
$1,717 USD
View
1 more retailer has this diamond
Prices start from $1,814 CADSave up to $585 CAD

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+
3.70ct Round
$1,814 CAD