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Cushion|Lab Grown|IGI

4.28ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG804665090

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG804665090

Diamond specifications and retailer prices

From $5,698 CAD
$4,079 USD
As of October 30, 2026
Save $30,370 CAD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $36,068 CAD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.28ct lab-grown cushion diamond

This 4.28ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG804665090 or 804665090. Listed at 10 retailers as of October 30, 2026, with prices from $5,698 to $36,068, a $30,370 spread on the same certified stone. Do Amore Diamonds lists it at $36,068. 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

4.28
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665090
Dimensions9.41 × 9.32 × 6.23 mm
L/W Ratio1.01
Girdle conditionFaceted
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
9.41 mm9.32 mm4.28 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665090
Side View
Table 64.0%Crown 38.8°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 66.8%

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 30
Current: $36,068 CAD|Low: $5,698 CAD|High: $46,223 CAD|Avg: $15,665 CAD|-22.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$5,698 CAD
Retailer 6$6,167 CAD
Retailer 4$6,687 CAD
Retailer 9$7,982 CAD
Retailer 8$9,492 CAD
Retailer 5$11,602 CAD
Retailer 10$11,968 CAD
Retailer 7$13,976 CAD
Retailer 3$18,523 CAD
Do Amore Diamonds$36,068 CAD

26 data points across 10 retailers

10 retailers$5,698 CAD to $36,068 CAD

A
Cheapest Retailer
-
$5,698 CAD
$4,079 USD
A
Retailer 2
-
$6,167 CAD
$4,415 USD
View
A
Retailer 3
-
$6,687 CAD
$4,787 USD
View
A
Retailer 4
-
$7,982 CAD
$5,714 USD
View
Final sale: no returns
A
Retailer 5
-
$9,492 CAD
$6,795 USD
View
A
Retailer 6
-
$11,602 CAD
€7,910 EUR
View
Retailer 7
-
$11,968 CAD
$8,567 USD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$13,976 CAD
£7,878 GBP
View
B+
Retailer 9
-
$18,523 CAD
$13,260 USD
View
Most Expensive
B
Do Amore Diamonds
27-29F68735D · Oct 30
$36,068 CAD
$25,820 USD
View
9 more retailers have this diamond
Prices start from $5,698 CADSave up to $30,370 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
4.28ct Cushion
$5,698 CAD