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Cushion|Lab Grown|IGI

1.67ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG579366652

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG579366652

Diamond specifications and retailer prices

From $319 CAD
$228 USD
As of October 27, 2026
Save $2,256 CAD (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,575 CAD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown cushion diamond

This 1.67ct 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 LG579366652 or 579366652. Listed at 6 retailers as of October 27, 2026, with prices from $319 to $2,575, a $2,256 spread on the same certified stone. Do Amore Diamonds lists it at $2,575. 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

1.67
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579366652
Dimensions7.82 × 6.36 × 4.35 mm
L/W Ratio1.23
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.82 mm6.36 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579366652
Side View
Table 60.0%Crown 35.9°Girdle: THN-STKPavilion 38.2°Culet: NoneDepth 68.4%

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 27
Current: $2,575 CAD|Low: $213 CAD|High: $2,729 CAD|Avg: $1,177 CAD|-5.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 5$319 CAD
Retailer 4$584 CAD
Retailer 8$655 CAD
Retailer 9$785 CAD
Retailer 6$792 CAD
Retailer 7$1,128 CAD
Retailer 3$1,211 CAD
Retailer 2$1,477 CAD
Retailer 10$2,099 CAD
Do Amore Diamonds$2,575 CAD

14 data points across 10 retailers

6 retailers$319 CAD to $2,575 CAD

A
Cheapest Retailer
-
$319 CAD
$228 USD
Final sale: no returns
B+
Retailer 2
-
$584 CAD
$417 USD
View
Retailer 3
-
$1,211 CAD
$865 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$1,295 CAD
$925 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,477 CAD
£831 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C12E4A2F5 · Oct 27
$2,575 CAD
$1,840 USD
View
5 more retailers have this diamond
Prices start from $319 CADSave up to $2,256 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
1.67ct Cushion
$319 CAD