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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 €3,651 EUR
$4,079 USD
As of November 1, 2026
Save €19,460 EUR (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €23,111 EUR 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 31, 2026, with prices from €3,651 to €23,111, a €19,460 spread on the same certified stone. Do Amore Diamonds lists it at €23,111. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €23,111 EUR|Low: €3,651 EUR|High: €29,619 EUR|Avg: €9,969 EUR|-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€3,651 EUR
Retailer 6€3,952 EUR
Retailer 5€4,285 EUR
Retailer 9€5,115 EUR
Retailer 8€6,082 EUR
Retailer 2€7,382 EUR
Retailer 10€7,668 EUR
Retailer 7€8,955 EUR
Retailer 4€11,869 EUR
Do Amore Diamonds€23,111 EUR

27 data points across 10 retailers

10 retailers€3,651 EUR to €23,111 EUR

A
Cheapest Retailer
-
€3,651 EUR
$4,079 USD
A
Retailer 2
-
€3,952 EUR
$4,415 USD
View
A
Retailer 3
-
€4,285 EUR
$4,787 USD
View
A
Retailer 4
-
€5,115 EUR
$5,714 USD
View
Final sale: no returns
A
Retailer 5
-
€6,082 EUR
$6,795 USD
View
A
Retailer 6
-
€7,382 EUR
View
Retailer 7
-
€7,668 EUR
$8,567 USD
View
Price last confirmed 83 days ago
B+
Retailer 8
-
€8,955 EUR
£7,878 GBP
View
B+
Retailer 9
-
€11,869 EUR
$13,260 USD
View
Most Expensive
B
Do Amore Diamonds
27-29F68735D · Oct 31
€23,111 EUR
$25,820 USD
View
9 more retailers have this diamond
Prices start from €3,651 EURSave up to €19,460 EUR

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
€3,651 EUR