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Cushion|Lab Grown|IGI

1.00ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818640099

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818640099

Diamond specifications and retailer prices

From $890 CAD
$637 USD
As of October 30, 2026
Save $2,756 CAD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,646 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct 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 LG818640099 or 818640099. Listed at 16 retailers as of October 29, 2026, with prices from $890 to $3,646, a $2,756 spread on the same certified stone. Brilliant Earth lists it at $3,646. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640099
Dimensions6.98 × 5.35 × 3.55 mm
L/W Ratio1.30
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
6.98 mm5.35 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640099
Side View
Table 62.0%Crown 33.8°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 66.4%

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 30
Current: $3,646 CAD|Low: $535 CAD|High: $3,758 CAD|Avg: $1,781 CAD|-3.0%
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
October 31, 2026
Retailer 16$753 CAD
Retailer 15$890 CAD
Retailer 14$912 CAD
Retailer 13$1,027 CAD
Retailer 7$1,118 CAD
Retailer 5$1,133 CAD
Retailer 10$1,261 CAD
Retailer 9$1,385 CAD
Retailer 12$1,433 CAD
Retailer 8$1,810 CAD
Retailer 2$1,824 CAD
Retailer 6$2,200 CAD
Retailer 4$2,720 CAD
Retailer 3$2,922 CAD
Retailer 11$3,500 CAD
Brilliant Earth$3,646 CAD

38 data points across 16 retailers

16 retailers$890 CAD to $3,646 CAD

Retailer 1
-
$753 CAD
$539 USD
Price last confirmed 12 days ago
Final sale: no returns
A
Retailer 2
-
$890 CAD
$637 USD
View
A
Retailer 3
-
$912 CAD
HK$5,100 HKD
View
A
Retailer 4
-
$1,027 CAD
$735 USD
View
A
Retailer 5
-
$1,118 CAD
$800 USD
View
A
Retailer 6
-
$1,133 CAD
$811 USD
View
B+
Retailer 7
-
$1,261 CAD
€860 EUR
View
B+
Retailer 8
-
$1,385 CAD
£781 GBP
View
B+
Retailer 9
-
$1,433 CAD
ZAR 16,574 ZAR
View
Retailer 10
-
$1,810 CAD
$1,296 USD
View
Price last confirmed 52 days ago
B+
Retailer 11
-
$1,824 CAD
$1,306 USD
View
B
Retailer 12
-
$2,200 CAD
SGD 2,128 SGD
View
B
Retailer 13
-
$2,720 CAD
$1,947 USD
View
B
Retailer 14
-
$2,922 CAD
$2,092 USD
View
B
Retailer 15
-
$3,500 CAD
£1,973 GBP
View
Most Expensive
B
Brilliant Earth
21086551A · Oct 29
$3,646 CAD
$2,610 USD
View
15 more retailers have this diamond
Prices start from $890 CADSave up to $2,756 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
1.00ct Cushion
$890 CAD