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Cushion|Lab Grown|IGI

1.09ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG816624103

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG816624103

Diamond specifications and retailer prices

From $550 CAD
$393 USD
As of October 30, 2026
Save $3,425 CAD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,975 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.09ct lab-grown cushion diamond

This 1.09ct 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 LG816624103 or 816624103. Listed at 13 retailers as of October 29, 2026, with prices from $550 to $3,975, a $3,425 spread on the same certified stone. Brilliant Earth lists it at $3,975. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624103
Dimensions6.25 × 6.10 × 3.89 mm
L/W Ratio1.02
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
6.25 mm6.10 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624103
Side View
Table 61.0%Crown 35.2°Girdle: THN-STKPavilion 39.8°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,975 CAD|Low: $404 CAD|High: $4,087 CAD|Avg: $1,588 CAD|-2.7%
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
October 30, 2026
Retailer 11$550 CAD
Retailer 4$630 CAD
Retailer 10$950 CAD
Retailer 9$952 CAD
Retailer 13$983 CAD
Retailer 6$992 CAD
Retailer 7$1,051 CAD
Retailer 2$1,100 CAD
Retailer 3$2,024 CAD
Retailer 5$2,029 CAD
Retailer 8$2,351 CAD
Retailer 12$2,393 CAD
Brilliant Earth$3,975 CAD

35 data points across 13 retailers

13 retailers$550 CAD to $3,975 CAD

A
Cheapest Retailer
-
$550 CAD
$393 USD
Final sale: no returns
A
Retailer 2
-
$630 CAD
$450 USD
View
A
Retailer 3
-
$950 CAD
$679 USD
View
A
Retailer 4
-
$952 CAD
$680 USD
View
A
Retailer 5
-
$983 CAD
$702 USD
View
A
Retailer 6
-
$992 CAD
€675 EUR
View
A
Retailer 7
-
$1,051 CAD
ZAR 12,131 ZAR
View
A
Retailer 8
-
$1,100 CAD
£619 GBP
View
B+
Retailer 9
-
$2,024 CAD
$1,446 USD
View
Retailer 10
-
$2,029 CAD
$1,450 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$2,351 CAD
$1,680 USD
View
B+
Retailer 12
-
$2,393 CAD
£1,346 GBP
View
Most Expensive
B
Brilliant Earth
21018849A · Oct 29
$3,975 CAD
$2,840 USD
View
12 more retailers have this diamond
Prices start from $550 CADSave up to $3,425 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
1.09ct Cushion
$550 CAD