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Cushion|Lab Grown|IGI

1.23ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836620499

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836620499

Diamond specifications and retailer prices

From $643 CAD
$460 USD
As of October 30, 2026
Save $2,682 CAD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,325 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620499 or 836620499. Listed at 14 retailers as of October 30, 2026, with prices from $643 to $3,325, a $2,682 spread on the same certified stone. Brilliant Earth lists it at $3,325. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620499
Dimensions7.83 × 5.25 × 3.62 mm
L/W Ratio1.49
Girdle conditionFaceted
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
7.83 mm5.25 mm1.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620499
Side View
Table 60.0%Crown 34°Girdle: MED-THKPavilion 34.2°Culet: NoneDepth 69.0%

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 30
Current: $3,325 CAD|Low: $643 CAD|High: $3,873 CAD|Avg: $1,788 CAD|-10.5%
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
October 30, 2026
Retailer 13$643 CAD
Retailer 10$691 CAD
Retailer 9$1,048 CAD
Retailer 7$1,094 CAD
Retailer 3$1,095 CAD
Retailer 2$1,136 CAD
Retailer 12$1,178 CAD
Retailer 8$1,189 CAD
Retailer 4$1,664 CAD
Retailer 5$2,228 CAD
Retailer 14$2,274 CAD
Retailer 6$2,661 CAD
Retailer 11$2,707 CAD
Brilliant Earth$3,325 CAD

38 data points across 14 retailers

14 retailers$643 CAD to $3,325 CAD

A
Cheapest Retailer
-
$643 CAD
$460 USD
Final sale: no returns
A
Retailer 2
-
$691 CAD
$495 USD
View
A
Retailer 3
-
$1,048 CAD
$750 USD
View
A
Retailer 4
-
$1,094 CAD
€746 EUR
View
A
Retailer 5
-
$1,095 CAD
$784 USD
View
A
Retailer 6
-
$1,136 CAD
£640 GBP
View
A
Retailer 7
-
$1,178 CAD
$843 USD
View
A
Retailer 8
-
$1,189 CAD
ZAR 13,747 ZAR
View
B+
Retailer 9
-
$1,664 CAD
$1,191 USD
View
Retailer 10
-
$2,228 CAD
$1,595 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$2,274 CAD
$1,628 USD
View
Retailer 12
-
$2,661 CAD
£1,500 GBP
View
Price last confirmed 21 days ago
B+
Retailer 13
-
$2,707 CAD
£1,526 GBP
View
Most Expensive
B
Brilliant Earth
21589747A · Oct 30
$3,325 CAD
$2,380 USD
View
13 more retailers have this diamond
Prices start from $643 CADSave up to $2,682 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
$643 CAD