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Cushion|Lab Grown|IGI

4.26ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG800677550

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800677550

Diamond specifications and retailer prices

From $4,087 USD
As of October 29, 2026
Save $21,623 USD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $25,710 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.26ct lab-grown cushion diamond

This 4.26ct 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 LG800677550 or 800677550. Listed at 10 retailers as of October 29, 2026, with prices from $4,087 to $25,710, a $21,623 spread on the same certified stone. Do Amore Diamonds lists it at $25,710. 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

4.26
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677550
Dimensions10.99 × 8.56 × 5.58 mm
L/W Ratio1.28
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
10.99 mm8.56 mm4.26 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677550
Side View
Table 61.0%Crown 36.1°Girdle: STK-THKPavilion 30.7°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: $25,710 USD|Low: $4,087 USD|High: $32,940 USD|Avg: $11,085 USD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 7$4,087 USD
Retailer 4$4,490 USD
Retailer 2$4,747 USD
Retailer 9$5,690 USD
Retailer 6$6,764 USD
Retailer 3$8,266 USD
Retailer 10$8,525 USD
Retailer 5$9,961 USD
Retailer 8$22,370 USD
Do Amore Diamonds$25,710 USD

26 data points across 10 retailers

10 retailers$4,087 USD to $25,710 USD

A+
Cheapest Retailer
-
$4,087 USD
A
Retailer 2
-
$4,490 USD
View
A
Retailer 3
-
$4,747 USD
View
A
Retailer 4
-
$5,690 USD
View
Final sale: no returns
A
Retailer 5
-
$6,764 USD
View
A
Retailer 6
-
$8,266 USD
€7,872 EUR
View
Retailer 7
-
$8,525 USD
View
Price last confirmed 81 days ago
B+
Retailer 8
-
$9,961 USD
£7,843 GBP
View
B
Retailer 9
-
$22,370 USD
View
Most Expensive
B
Do Amore Diamonds
27-EED11B3FB · Oct 30
$25,710 USD
View
9 more retailers have this diamond
Prices start from $4,087 USDSave up to $21,623 USD

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+
4.26ct Cushion
$4,087 USD