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Cushion|Lab Grown|IGI

1.63ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG488122840

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG488122840

Diamond specifications and retailer prices

From $302 CAD
$216 USD
As of October 28, 2026
Save $2,287 CAD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,589 CAD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.63ct lab-grown cushion diamond

This 1.63ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488122840 or 488122840. Listed at 13 retailers as of October 28, 2026, with prices from $302 to $2,589, a $2,287 spread on the same certified stone. Do Amore Diamonds lists it at $2,589. 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

1.63
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488122840
Dimensions7.46 × 6.67 × 4.34 mm
L/W Ratio1.12
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
7.46 mm6.67 mm1.63 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488122840
Side View
Table 62.5%Crown 32.9°Girdle: MediumPavilion 39.1°Culet: NoneDepth 65.1%

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 28
Current: $683 CAD|Low: $302 CAD|High: $2,673 CAD|Avg: $1,002 CAD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9$302 CAD
Retailer 6$335 CAD
Retailer 2$601 CAD
Retailer 1$683 CAD
Retailer 8$808 CAD
Retailer 4$1,211 CAD
Retailer 7$1,358 CAD
Retailer 3$1,484 CAD
Retailer 5$1,847 CAD

43 data points across 9 retailers

13 retailers$302 CAD to $2,589 CAD

A
Cheapest Retailer
-
$302 CAD
$216 USD
Final sale: no returns
A
Retailer 2
-
$335 CAD
$239 USD
View
B+
Retailer 3
-
$449 CAD
$321 USD
View
A
Retailer 4
-
$581 CAD
$415 USD
View
A
Retailer 5
-
$601 CAD
€409 EUR
View
A
Retailer 6
-
$683 CAD
£384 GBP
View
A
Retailer 7
-
$808 CAD
$577 USD
View
B+
Retailer 8
-
$1,211 CAD
$865 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$1,231 CAD
$880 USD
View
B+
Retailer 10
-
$1,358 CAD
$971 USD
View
B+
Retailer 11
-
$1,484 CAD
£835 GBP
View
B
Retailer 12
-
$1,847 CAD
$1,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-50C0F166E · Oct 29
$2,589 CAD
$1,850 USD
View
12 more retailers have this diamond
Prices start from $302 CADSave up to $2,287 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
1.63ct Cushion
$302 CAD