Cushion|Lab Grown|IGI

1.05ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG640450758

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG640450758

Diamond specifications and retailer prices

From $651 CAD
€444 EUR
As of October 23, 2026
Save $198 CAD (23%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,679 CAD at Queensmith · As of October 22, 2026
View at Queensmith

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG640450758 or 640450758. Listed at 16 retailers as of October 23, 2026, with a 30% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.7°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640450758
Dimensions5.55 × 5.55 × 3.51 mm
L/W Ratio1.00
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
5.55 mm5.55 mm1.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640450758
Side View
Table 57.0%Crown 28.7°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: $661 CAD|Low: $352 CAD|High: $2,319 CAD|Avg: $1,098 CAD|-15.7%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
October 23, 2026
Retailer 5$352 CAD
Retailer 8$429 CAD
Retailer 19$534 CAD
Retailer 15$651 CAD
Retailer 1$661 CAD
Retailer 10$698 CAD
Retailer 12$703 CAD
Retailer 18$718 CAD
Retailer 3$849 CAD
Retailer 16$962 CAD
Retailer 6$1,055 CAD
Retailer 4$1,330 CAD
Retailer 7$1,349 CAD
Retailer 17$1,428 CAD
Retailer 13$1,574 CAD
Retailer 2$1,781 CAD
Retailer 14$1,816 CAD
Retailer 11$1,852 CAD
Retailer 9$2,319 CAD

35 data points across 19 retailers

16 retailers$651 CAD to $849 CAD

Retailer 1
-
$429 CAD
HK$2,400 HKD
Price last confirmed 24 days ago
Retailer 2
-
$534 CAD
$382 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$651 CAD
€444 EUR
View
Retailer 4
-
$661 CAD
ZAR 7,642 ZAR
View
Price last confirmed 7 days ago
Retailer 5
-
$703 CAD
£397 GBP
View
Price last confirmed 7 days ago
Retailer 6
-
$718 CAD
$514 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$849 CAD
$608 USD
View
Retailer 8
-
$962 CAD
A$1,059 AUD
View
Price last confirmed 12 days ago
Retailer 9
-
$1,055 CAD
SGD 1,021 SGD
View
Price last confirmed 23 days ago
Retailer 10
-
$1,330 CAD
$952 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$1,428 CAD
A$1,573 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
$1,574 CAD
£887 GBP
View
Price last confirmed 9 days ago
Retailer 13
-
$1,781 CAD
$1,275 USD
View
Price last confirmed 7 days ago
Retailer 14
-
$1,816 CAD
$1,300 USD
View
Price last confirmed 11 days ago
Retailer 15
-
$2,319 CAD
$1,660 USD
View
Price last confirmed 7 days ago
Most Expensive
Queensmith
LG640450758 · Oct 22
$2,679 CAD
£1,510 GBP
View
Price last confirmed 8 days ago
15 more retailers have this diamond
Prices start from $651 CADSave up to $198 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
1.05ct Cushion
$651 CAD