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Cushion|Lab Grown|IGI

1.65ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG485151098

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG485151098

Diamond specifications and retailer prices

From $291 CAD
$208 USD
As of October 28, 2026
Save $2,200 CAD (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,491 CAD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.65ct lab-grown cushion diamond

This 1.65ct 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 LG485151098 or 485151098. Listed at 14 retailers as of October 28, 2026, with prices from $291 to $2,491, a $2,200 spread on the same certified stone. Do Amore Diamonds lists it at $2,491. 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

1.65
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485151098
Dimensions7.48 × 6.52 × 4.41 mm
L/W Ratio1.15
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
7.48 mm6.52 mm1.65 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485151098
Side View
Table 62.5%Crown 35.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 67.6%

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 28
Current: $654 CAD|Low: $291 CAD|High: $2,701 CAD|Avg: $933 CAD|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9$291 CAD
Retailer 7$322 CAD
Retailer 2$434 CAD
Retailer 3$582 CAD
Retailer 1$654 CAD
Retailer 10$796 CAD
Retailer 5$1,211 CAD
Retailer 8$1,318 CAD
Retailer 4$1,664 CAD
Retailer 6$1,708 CAD

41 data points across 10 retailers

14 retailers$291 CAD to $2,491 CAD

A
Cheapest Retailer
-
$291 CAD
$208 USD
Final sale: no returns
A
Retailer 2
-
$322 CAD
$230 USD
View
B+
Retailer 3
-
$434 CAD
$310 USD
View
A
Retailer 4
-
$582 CAD
€396 EUR
View
A
Retailer 5
-
$591 CAD
$422 USD
View
A
Retailer 6
-
$654 CAD
£368 GBP
View
A
Retailer 7
-
$796 CAD
$569 USD
View
B+
Retailer 8
-
$1,198 CAD
$856 USD
View
B+
Retailer 9
-
$1,211 CAD
$865 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$1,281 CAD
$915 USD
View
Price last confirmed 109 days ago
B+
Retailer 11
-
$1,318 CAD
$942 USD
View
B
Retailer 12
-
$1,664 CAD
£936 GBP
View
B
Retailer 13
-
$1,708 CAD
$1,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-D3AE044AA · Oct 29
$2,491 CAD
$1,780 USD
View
13 more retailers have this diamond
Prices start from $291 CADSave up to $2,200 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
1.65ct Cushion
$291 CAD