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Cushion|Lab Grown|IGI

3.23ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG629454997

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG629454997

Diamond specifications and retailer prices

From $659 CAD
$471 USD
As of October 29, 2026
Save $6,423 CAD (91%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,082 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.23ct lab-grown cushion diamond

This 3.23ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG629454997 or 629454997. Listed at 12 retailers as of October 29, 2026, with prices from $659 to $7,082, a $6,423 spread on the same certified stone. Brilliant Earth lists it at $7,082. 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

3.23
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629454997
Dimensions8.63 × 8.39 × 5.65 mm
L/W Ratio1.03
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
8.63 mm8.39 mm3.23 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629454997
Side View
Table 63.0%Crown 38.4°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 67.3%

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: $7,082 CAD|Low: $659 CAD|High: $7,096 CAD|Avg: $1,719 CAD|-0.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 4$659 CAD
Retailer 3$729 CAD
Retailer 10$1,094 CAD
Retailer 7$1,106 CAD
Retailer 9$1,127 CAD
Retailer 2$1,134 CAD
Retailer 5$1,227 CAD
Retailer 12$1,849 CAD
Retailer 11$2,271 CAD
Retailer 8$2,382 CAD
Retailer 6$2,714 CAD
Brilliant Earth$7,082 CAD

43 data points across 12 retailers

12 retailers$659 CAD to $7,082 CAD

A
Cheapest Retailer
-
$659 CAD
$471 USD
Final sale: no returns
A
Retailer 2
-
$729 CAD
$521 USD
View
B+
Retailer 3
-
$1,094 CAD
$782 USD
View
A
Retailer 4
-
$1,106 CAD
$790 USD
View
A
Retailer 5
-
$1,127 CAD
$805 USD
View
A
Retailer 6
-
$1,134 CAD
£638 GBP
View
A
Retailer 7
-
$1,227 CAD
€835 EUR
View
B+
Retailer 8
-
$1,849 CAD
$1,321 USD
View
B+
Retailer 9
-
$2,271 CAD
$1,623 USD
View
B+
Retailer 10
-
$2,382 CAD
$1,702 USD
View
B+
Retailer 11
-
$2,714 CAD
£1,527 GBP
View
Most Expensive
B
Brilliant Earth
14069332A · Oct 29
$7,082 CAD
$5,060 USD
View
11 more retailers have this diamond
Prices start from $659 CADSave up to $6,423 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
3.23ct Cushion
$659 CAD