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Round|Lab Grown|IGI

3.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG847680685

Shape and cutting style on the report: Round brilliant

Certificate IGI LG847680685

Diamond specifications and retailer prices

From $1,050 CAD
€716 EUR
As of October 29, 2026
Save $2,442 CAD (70%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,492 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.51ct lab-grown round diamond

This 3.51ct 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 LG847680685 or 847680685. Listed at 3 retailers as of October 29, 2026, with prices from $1,050 to $3,492, a $2,442 spread on the same certified stone. Brilliant Earth lists it at $3,492. 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

3.51
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847680685
Dimensions9.78 × 9.75 × 5.89 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.78 mm9.75 mm3.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847680685
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
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: Oct 29
Current: $3,492 CAD|Low: $1,047 CAD|High: $6,202 CAD|Avg: $3,256 CAD|-43.7%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$1,050 CAD
Retailer 2$2,567 CAD
Brilliant Earth$3,492 CAD

6 data points across 3 retailers

3 retailers$1,050 CAD to $3,492 CAD

A
Cheapest Retailer
-
$1,050 CAD
€716 EUR
B
Retailer 2
-
$2,567 CAD
£1,447 GBP
View
Most Expensive
B
Brilliant Earth
22258150A · Oct 31
$3,492 CAD
$2,500 USD
View
2 more retailers have this diamond
Prices start from $1,050 CADSave up to $2,442 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.

A
3.51ct Round
$1,050 CAD