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Round|Lab Grown|IGI

3.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG616408199

Shape and cutting style on the report: Round brilliant

Certificate IGI LG616408199

Diamond specifications and retailer prices

From $566 CAD
$405 USD
As of October 26, 2026
Save $4,449 CAD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,669 CAD at Jared · As of October 28, 2026
View at Jared

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 LG616408199 or 616408199. Listed at 12 retailers as of October 26, 2026, with a 786% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG616408199
Dimensions9.75 × 9.78 × 5.96 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
9.75 mm9.78 mm3.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG616408199
Side View
Table 59.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.0%

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 26
Current: $2,856 CAD|Low: $468 CAD|High: $5,196 CAD|Avg: $2,089 CAD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 15$566 CAD
Retailer 10$633 CAD
Retailer 2$655 CAD
Retailer 8$1,082 CAD
Retailer 9$1,111 CAD
Retailer 13$1,111 CAD
Retailer 6$1,244 CAD
Retailer 4$1,386 CAD
Retailer 5$1,460 CAD
Retailer 11$1,965 CAD
Retailer 12$2,486 CAD
Retailer 1$2,856 CAD
Retailer 7$3,194 CAD
Retailer 3$4,638 CAD
Retailer 14$5,015 CAD

24 data points across 15 retailers

12 retailers$566 CAD to $5,015 CAD

A
Cheapest Retailer
-
$566 CAD
$405 USD
A
Retailer 2
-
$633 CAD
$453 USD
View
A
Retailer 3
-
$655 CAD
$469 USD
View
Final sale: no returns
A
Retailer 4
-
$1,082 CAD
£610 GBP
View
A
Retailer 5
-
$1,111 CAD
$795 USD
View
B+
Retailer 6
-
$1,111 CAD
$795 USD
View
B
Retailer 7
-
$1,965 CAD
$1,407 USD
View
B+
Retailer 8
-
$2,486 CAD
$1,780 USD
View
B
Retailer 9
-
$2,856 CAD
£1,610 GBP
View
B
Retailer 10
-
$4,638 CAD
$3,320 USD
View
B
Retailer 11
-
$5,015 CAD
$3,590 USD
View
Most Expensive
Jared
149932601 · Oct 28
$7,669 CAD
$5,490 USD
View
Price under review
11 more retailers have this diamond
Prices start from $566 CADSave up to $4,449 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
$566 CAD