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Cushion|Lab Grown|IGI

4.21ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG784642485

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

Certificate IGI LG784642485

Diamond specifications and retailer prices

From €3,647 EUR
$4,074 USD
As of November 1, 2026
Save €19,107 EUR (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €22,753 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.21ct lab-grown cushion diamond

This 4.21ct 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 LG784642485 or 784642485. Listed at 11 retailers as of October 31, 2026, with prices from €3,647 to €22,753, a €19,107 spread on the same certified stone. Do Amore Diamonds lists it at €22,753. 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

4.21
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642485
Dimensions9.24 × 9.21 × 6.34 mm
L/W Ratio1.00
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
9.24 mm9.21 mm4.21 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642485
Side View
Table 61.0%Crown 37.2°Girdle: STK-THKPavilion 39°Culet: NoneDepth 68.8%

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: €22,753 EUR|Low: €3,647 EUR|High: €29,153 EUR|Avg: €9,604 EUR|-22.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5€3,647 EUR
Retailer 8€3,974 EUR
Retailer 7€4,159 EUR
Retailer 10€5,036 EUR
Retailer 3€5,947 EUR
Retailer 4€7,260 EUR
Retailer 9€7,304 EUR
Retailer 2€9,071 EUR
Retailer 6€11,681 EUR
Do Amore Diamonds€22,753 EUR

29 data points across 10 retailers

11 retailers€3,647 EUR to €22,753 EUR

A
Cheapest Retailer
-
€3,647 EUR
$4,074 USD
A
Retailer 2
-
€3,974 EUR
$4,440 USD
View
A
Retailer 3
-
€4,159 EUR
$4,647 USD
View
A
Retailer 4
-
€5,036 EUR
$5,626 USD
View
Final sale: no returns
A
Retailer 5
-
€5,947 EUR
$6,644 USD
View
A
Retailer 6
-
€7,260 EUR
View
Retailer 7
-
€7,304 EUR
$8,160 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
€9,071 EUR
£7,980 GBP
View
B+
Retailer 9
-
€11,681 EUR
$13,050 USD
View
B
Retailer 10
-
€17,922 EUR
$20,023 USD
View
Most Expensive
B
Do Amore Diamonds
27-36DC3358C · Oct 31
€22,753 EUR
$25,420 USD
View
10 more retailers have this diamond
Prices start from €3,647 EURSave up to €19,107 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
4.21ct Cushion
€3,647 EUR