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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 $5,215 SGD
$4,079 USD
As of October 30, 2026
Save $27,794 SGD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $33,008 SGD at Do Amore Diamonds · As of October 31, 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 $5,215 to $33,008, a $27,794 spread on the same certified stone. Do Amore Diamonds lists it at $33,008. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $33,008 SGD|Low: $5,215 SGD|High: $42,302 SGD|Avg: $14,239 SGD|-22.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$5,215 SGD
Retailer 6$5,644 SGD
Retailer 5$6,120 SGD
Retailer 9$7,305 SGD
Retailer 8$8,687 SGD
Retailer 2$10,543 SGD
Retailer 10$10,952 SGD
Retailer 7$12,790 SGD
Retailer 4$16,952 SGD
Do Amore Diamonds$33,008 SGD

27 data points across 10 retailers

10 retailers$5,215 SGD to $33,008 SGD

A
Cheapest Retailer
-
$5,215 SGD
$4,079 USD
A
Retailer 2
-
$5,644 SGD
$4,415 USD
View
A
Retailer 3
-
$6,120 SGD
$4,787 USD
View
A
Retailer 4
-
$7,305 SGD
$5,714 USD
View
Final sale: no returns
A
Retailer 5
-
$8,687 SGD
$6,795 USD
View
A
Retailer 6
-
$10,543 SGD
€7,854 EUR
View
Retailer 7
-
$10,952 SGD
$8,567 USD
View
Price last confirmed 83 days ago
B+
Retailer 8
-
$12,790 SGD
£7,878 GBP
View
B+
Retailer 9
-
$16,952 SGD
$13,260 USD
View
Most Expensive
B
Do Amore Diamonds
27-29F68735D · Oct 31
$33,008 SGD
$25,820 USD
View
9 more retailers have this diamond
Prices start from $5,215 SGDSave up to $27,794 SGD

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
$5,215 SGD