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Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG789612851

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG789612851

Diamond specifications and retailer prices

From €3,829 EUR
£3,368 GBP
As of October 30, 2026
Save €20,795 EUR (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €24,624 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.23ct lab-grown cushion diamond

This 4.23ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG789612851 or 789612851. Listed at 21 retailers as of October 30, 2026, with prices from €3,829 to €24,624, a €20,795 spread on the same certified stone. Do Amore Diamonds lists it at €24,624. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.23
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789612851
Dimensions10.95 × 8.81 × 5.89 mm
L/W Ratio1.24
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
10.95 mm8.81 mm4.23 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789612851
Side View
Table 59.0%Crown 32.2°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 66.9%

Caratlytics Score

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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: €24,624 EUR|Low: €3,816 EUR|High: €24,624 EUR|Avg: €9,497 EUR
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 19
October 31, 2026
Retailer 13€3,829 EUR
Retailer 17€3,950 EUR
Retailer 4€4,009 EUR
Retailer 18€4,130 EUR
Retailer 3€4,202 EUR
Retailer 9€4,584 EUR
Retailer 19€5,499 EUR
Retailer 14€5,944 EUR
Retailer 10€6,452 EUR
Retailer 8€7,091 EUR
Retailer 6€7,840 EUR
Retailer 2€8,552 EUR
Retailer 16€9,541 EUR
Retailer 15€9,754 EUR
Retailer 5€11,430 EUR
Retailer 12€11,735 EUR
Retailer 7€15,925 EUR
Retailer 11€16,352 EUR
Do Amore Diamonds€24,624 EUR

32 data points across 19 retailers

21 retailers€3,829 EUR to €24,624 EUR

A
Cheapest Retailer
-
€3,829 EUR
£3,368 GBP
A
Retailer 2
-
€3,950 EUR
$4,413 USD
View
A
Retailer 3
-
€4,009 EUR
$4,479 USD
View
Final sale: no returns
A
Retailer 4
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€4,130 EUR
$4,614 USD
View
A
Retailer 5
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€4,202 EUR
$4,695 USD
View
Retailer 6
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€4,584 EUR
$5,121 USD
View
Price last confirmed 15 days ago
A
Retailer 7
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€5,499 EUR
HK$48,000 HKD
View
A
Retailer 8
-
€5,944 EUR
£5,229 GBP
View
A
Retailer 9
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€6,452 EUR
£5,676 GBP
View
Retailer 10
-
€7,091 EUR
$7,922 USD
View
Price last confirmed 8 days ago
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Retailer 11
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€7,840 EUR
$8,759 USD
View
A
Retailer 12
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€8,048 EUR
$8,991 USD
View
B+
Retailer 13
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€8,552 EUR
View
B+
Retailer 14
-
€9,541 EUR
£8,393 GBP
View
B+
Retailer 15
-
€9,754 EUR
ZAR 176,054 ZAR
View
B+
Retailer 16
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€11,430 EUR
$12,770 USD
View
B+
Retailer 17
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€11,735 EUR
$13,110 USD
View
B
Retailer 18
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€15,925 EUR
SGD 24,043 SGD
View
B
Retailer 19
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€16,352 EUR
$18,269 USD
View
Retailer 20
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€19,889 EUR
$22,220 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-E50AB4534 · Oct 31
€24,624 EUR
$27,510 USD
View
20 more retailers have this diamond
Prices start from €3,829 EURSave up to €20,795 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
4.23ct Cushion
€3,829 EUR