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Round|Lab Grown|IGI

3.21ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG654411372

Shape and cutting style on the report: Round brilliant

Certificate IGI LG654411372

Diamond specifications and retailer prices

From $560 CAD
$401 USD
As of October 29, 2026
Save $2,499 CAD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,059 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.21ct lab-grown round diamond

This 3.21ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG654411372 or 654411372. Listed at 21 retailers as of October 29, 2026, with prices from $560 to $3,059, a $2,499 spread on the same certified stone. Brilliant Earth lists it at $3,059. 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

3.21
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654411372
Dimensions9.44 × 9.49 × 5.81 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
9.44 mm9.49 mm3.21 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654411372
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

Caratlytics Score

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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: $3,059 CAD|Low: $556 CAD|High: $3,059 CAD|Avg: $1,529 CAD
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 8$560 CAD
Retailer 15$629 CAD
Retailer 13$677 CAD
Retailer 4$696 CAD
Retailer 18$696 CAD
Retailer 14$901 CAD
Retailer 5$1,101 CAD
Retailer 3$1,129 CAD
Retailer 2$1,139 CAD
Retailer 12$1,160 CAD
Retailer 17$1,524 CAD
Retailer 7$1,753 CAD
Retailer 9$2,235 CAD
Retailer 10$2,285 CAD
Retailer 16$2,556 CAD
Retailer 6$2,565 CAD
Retailer 11$2,730 CAD
Brilliant Earth$3,059 CAD

44 data points across 18 retailers

21 retailers$560 CAD to $3,059 CAD

Retailer 1
-
$556 CAD
$398 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$560 CAD
$401 USD
View
A
Retailer 3
-
$629 CAD
$450 USD
View
A
Retailer 4
-
$677 CAD
$485 USD
View
Final sale: no returns
Retailer 5
-
$680 CAD
$487 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$696 CAD
$498 USD
View
A
Retailer 7
-
$696 CAD
$498 USD
View
A
Retailer 8
-
$901 CAD
$645 USD
View
B+
Retailer 9
-
$1,101 CAD
$788 USD
View
A
Retailer 10
-
$1,129 CAD
$808 USD
View
A
Retailer 11
-
$1,139 CAD
£642 GBP
View
A
Retailer 12
-
$1,160 CAD
€791 EUR
View
B+
Retailer 13
-
$1,524 CAD
$1,091 USD
View
B
Retailer 14
-
$1,753 CAD
$1,255 USD
View
Retailer 15
-
$2,214 CAD
$1,585 USD
View
Price last confirmed 39 days ago
B
Retailer 16
-
$2,235 CAD
$1,600 USD
View
B
Retailer 17
-
$2,285 CAD
$1,636 USD
View
Retailer 18
-
$2,556 CAD
$1,830 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
$2,565 CAD
$1,836 USD
View
B
Retailer 20
-
$2,730 CAD
£1,539 GBP
View
Most Expensive
B
Brilliant Earth
14276809A · Oct 29
$3,059 CAD
$2,190 USD
View
20 more retailers have this diamond
Prices start from $560 CADSave up to $2,499 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
3.21ct Round
$560 CAD