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Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG800662995

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800662995

Diamond specifications and retailer prices

From €5,128 EUR
$5,729 USD
As of October 31, 2026
Save €25,970 EUR (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €31,098 EUR at With Clarity · As of October 31, 2026
View at With Clarity

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 LG800662995 or 800662995. Listed at 20 retailers as of October 31, 2026, with prices from €5,128 to €31,098, a €25,970 spread on the same certified stone. With Clarity lists it at €31,098. 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 angle35°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800662995
Dimensions11.41 × 8.58 × 5.59 mm
L/W Ratio1.33
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.41 mm8.58 mm4.23 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800662995
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 65.2%

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 31
Current: €9,605 EUR|Low: €4,951 EUR|High: €30,508 EUR|Avg: €11,643 EUR|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
With Clarity
October 31, 2026
Retailer 16€5,128 EUR
Retailer 6€5,700 EUR
Retailer 4€6,045 EUR
Retailer 5€6,118 EUR
Retailer 19€6,122 EUR
Retailer 7€6,188 EUR
Retailer 12€7,016 EUR
Retailer 13€7,667 EUR
Retailer 3€8,717 EUR
Retailer 1€9,605 EUR
Retailer 2€10,363 EUR
Retailer 15€12,525 EUR
Retailer 14€13,031 EUR
Retailer 17€13,708 EUR
Retailer 8€15,793 EUR
Retailer 9€16,508 EUR
Retailer 10€17,033 EUR
Retailer 18€18,008 EUR
Retailer 11€21,424 EUR
With Clarity€30,508 EUR

39 data points across 20 retailers

20 retailers€5,128 EUR to €31,098 EUR

A
Cheapest Retailer
-
€5,128 EUR
$5,729 USD
A
Retailer 2
-
€5,700 EUR
CA$8,844 CAD
View
A
Retailer 3
-
€6,045 EUR
$6,754 USD
View
A
Retailer 4
-
€6,118 EUR
$6,835 USD
View
Retailer 5
-
€6,122 EUR
$6,840 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€6,188 EUR
$6,913 USD
View
A
Retailer 7
-
€7,016 EUR
$7,838 USD
View
Final sale: no returns
A
Retailer 8
-
€7,667 EUR
£6,744 GBP
View
B+
Retailer 9
-
€8,717 EUR
£7,668 GBP
View
B+
Retailer 10
-
€9,605 EUR
View
B+
Retailer 11
-
€10,363 EUR
$11,578 USD
View
B+
Retailer 12
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€12,525 EUR
£11,018 GBP
View
B+
Retailer 13
-
€13,031 EUR
ZAR 235,196 ZAR
View
B
Retailer 14
-
€13,708 EUR
$15,315 USD
View
B
Retailer 15
-
€15,793 EUR
$17,644 USD
View
B+
Retailer 16
-
€16,508 EUR
$18,443 USD
View
B
Retailer 17
-
€17,033 EUR
$19,029 USD
View
B
Retailer 18
-
€18,008 EUR
$20,119 USD
View
B
Retailer 19
-
€21,424 EUR
$23,935 USD
View
Most Expensive
B
With Clarity
800662995 · Oct 31
€31,098 EUR
$34,743 USD
View
19 more retailers have this diamond
Prices start from €5,128 EURSave up to €25,970 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
€5,128 EUR