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Round|Lab Grown|IGI

3.09ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG483197020

Shape and cutting style on the report: Round brilliant

Certificate IGI LG483197020

Diamond specifications and retailer prices

From $4,479 CAD
$3,200 USD
As of October 29, 2026
Save $16,224 CAD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $20,702 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 3.09ct lab-grown round diamond

This 3.09ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG483197020 or 483197020. Listed at 11 retailers as of October 29, 2026, with prices from $4,479 to $20,702, a $16,224 spread on the same certified stone. MOH London lists it at $20,702. 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

3.09
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG483197020
Dimensions9.36 × 9.34 × 5.63 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.36 mm9.34 mm3.09 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG483197020
Side View
Table 60.5%Crown 35.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $20,702 CAD|Low: $4,479 CAD|High: $20,868 CAD|Avg: $11,340 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4$4,479 CAD
Retailer 3$8,880 CAD
Retailer 6$9,946 CAD
Retailer 7$10,273 CAD
Retailer 8$10,637 CAD
Retailer 5$11,946 CAD
Retailer 2$12,248 CAD
MOH London$20,702 CAD

14 data points across 8 retailers

11 retailers$4,479 CAD to $20,702 CAD

B+
Cheapest Retailer
-
$4,479 CAD
$3,200 USD
B
Retailer 2
-
$8,880 CAD
$6,345 USD
View
B
Retailer 3
-
$9,235 CAD
$6,598 USD
View
B
Retailer 4
-
$9,946 CAD
$7,106 USD
View
Final sale: no returns
B
Retailer 5
-
$10,273 CAD
$7,340 USD
View
B
Retailer 6
-
$10,301 CAD
$7,360 USD
View
Retailer 7
-
$10,301 CAD
$7,360 USD
View
Price last confirmed 17 days ago
B
Retailer 8
-
$11,946 CAD
$8,535 USD
View
B
Retailer 9
-
$12,228 CAD
$8,737 USD
View
B
Retailer 10
-
$12,248 CAD
$8,751 USD
View
Most Expensive
B
MOH London
LG483197020 · Oct 29
$20,702 CAD
£11,647 GBP
View
10 more retailers have this diamond
Prices start from $4,479 CADSave up to $16,224 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+
3.09ct Round
$4,479 CAD