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Cushion|Lab Grown|IGI

1.23ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG801682433

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG801682433

Diamond specifications and retailer prices

From $366 CAD
As of November 6, 2026
Save $675 CAD (65%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,474 CAD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG801682433 or 801682433. Listed at 15 retailers as of November 6, 2026, with a 185% 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

1.23
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801682433
Dimensions6.71 × 5.53 × 4.06 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.71 mm5.53 mm1.23 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG801682433
Side View
Table 64.0%Crown 38°Girdle: STK-VTKPavilion 36.2°Culet: NoneDepth 73.4%

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: Nov 6
Current: $461 CAD|Low: $242 CAD|High: $1,574 CAD|Avg: $796 CAD|-7.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 6, 2026
Retailer 3$242 CAD
Retailer 4$366 CAD
Retailer 1$461 CAD
Retailer 10$467 CAD
Retailer 9$523 CAD
Retailer 6$601 CAD
Retailer 5$654 CAD
Retailer 2$729 CAD
Retailer 8$872 CAD
Retailer 12$942 CAD
Retailer 7$1,041 CAD
Retailer 11$1,259 CAD
Reve Diamonds$1,474 CAD

38 data points across 13 retailers

15 retailers$366 CAD to $1,041 CAD

B+
Cheapest Retailer
-
$366 CAD
A
Retailer 2
-
$461 CAD
View
Retailer 3
-
$467 CAD
View
Price last confirmed 10 days ago
Retailer 4
-
$523 CAD
View
Price last confirmed 9 days ago
Retailer 5
-
$540 CAD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$601 CAD
View
B+
Retailer 7
-
$654 CAD
View
Retailer 8
-
$672 CAD
View
Price last confirmed 11 days ago
Retailer 9
-
$729 CAD
View
Price last confirmed 11 days ago
Retailer 10
-
$865 CAD
View
Price last confirmed 43 days ago
B+
Retailer 11
-
$872 CAD
View
Retailer 12
-
$942 CAD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$1,041 CAD
View
Retailer 14
-
$1,259 CAD
View
Price last confirmed 11 days ago
Most Expensive
Reve Diamonds
E41CDD5BE · Oct 25
$1,474 CAD
$1,048 USD
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from $366 CADSave up to $675 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
1.23ct Cushion
$366 CAD