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Cushion|Lab Grown|IGI

3.50ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG807652606

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG807652606

Diamond specifications and retailer prices

From $805 CAD
HK$4,500 HKD
As of October 30, 2026
Save $3,065 CAD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,869 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.5ct lab-grown cushion diamond

This 3.5ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG807652606 or 807652606. Listed at 13 retailers as of October 30, 2026, with prices from $805 to $3,869, a $3,065 spread on the same certified stone. Brilliant Earth lists it at $3,869. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.50
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle29.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807652606
Dimensions10.68 × 7.54 × 4.74 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.68 mm7.54 mm3.50 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807652606
Side View
Table 67.0%Crown 36.4°Girdle: MED-THKPavilion 29.4°Culet: NoneDepth 62.9%

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: $3,869 CAD|Low: $671 CAD|High: $7,292 CAD|Avg: $2,072 CAD|-46.9%
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
October 30, 2026
Retailer 5$671 CAD
Retailer 7$805 CAD
Retailer 10$914 CAD
Retailer 9$1,125 CAD
Retailer 2$1,129 CAD
Retailer 14$1,172 CAD
Retailer 4$1,190 CAD
Retailer 11$1,220 CAD
Retailer 13$1,801 CAD
Retailer 12$1,887 CAD
Retailer 8$2,339 CAD
Retailer 3$2,737 CAD
Retailer 6$3,744 CAD
Brilliant Earth$3,869 CAD

35 data points across 14 retailers

13 retailers$805 CAD to $3,869 CAD

A
Cheapest Retailer
-
$805 CAD
HK$4,500 HKD
A
Retailer 2
-
$914 CAD
£515 GBP
View
B+
Retailer 3
-
$1,125 CAD
$805 USD
View
A
Retailer 4
-
$1,129 CAD
€770 EUR
View
B
Retailer 5
-
$1,172 CAD
$839 USD
View
A
Retailer 6
-
$1,190 CAD
$852 USD
View
A
Retailer 7
-
$1,220 CAD
£688 GBP
View
B+
Retailer 8
-
$1,801 CAD
$1,289 USD
View
B+
Retailer 9
-
$1,887 CAD
$1,351 USD
View
B+
Retailer 10
-
$2,339 CAD
SGD 2,263 SGD
View
B+
Retailer 11
-
$2,737 CAD
£1,543 GBP
View
B
Retailer 12
-
$3,744 CAD
$2,680 USD
View
Most Expensive
B
Brilliant Earth
20143830A · Oct 30
$3,869 CAD
$2,770 USD
View
12 more retailers have this diamond
Prices start from $805 CADSave up to $3,065 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
3.50ct Cushion
$805 CAD