Cushion|Lab Grown|IGI

4.29ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG808634528

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG808634528

Diamond specifications and retailer prices

From $5,810 USD
As of October 26, 2026
Save $29,426 USD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $35,236 USD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.29ct lab-grown cushion diamond

This 4.29ct 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 LG808634528 or 808634528. Listed at 21 retailers as of October 26, 2026, with prices from $5,810 to $35,236, a $29,426 spread on the same certified stone. With Clarity lists it at $35,236. 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

4.29
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808634528
Dimensions11.52 × 8.52 × 5.64 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.52 mm8.52 mm4.29 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808634528
Side View
Table 61.0%Crown 36.7°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 66.2%

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 26
Current: $8,686 USD|Low: $5,610 USD|High: $23,230 USD|Avg: $11,620 USD|-0.0%
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
October 30, 2026
Retailer 11$5,810 USD
Retailer 8$6,693 USD
Retailer 6$6,917 USD
Retailer 14$6,934 USD
Retailer 2$7,008 USD
Retailer 1$8,686 USD
Retailer 4$9,876 USD
Retailer 9$10,961 USD
Retailer 13$11,740 USD
Retailer 10$14,185 USD
Retailer 7$14,758 USD
Retailer 12$15,515 USD
Retailer 5$17,894 USD
Retailer 3$23,230 USD

43 data points across 14 retailers

21 retailers$5,810 USD to $35,236 USD

A
Cheapest Retailer
-
$5,810 USD
A
Retailer 2
-
$6,457 USD
CA$8,968 CAD
View
A
Retailer 3
-
$6,693 USD
View
Final sale: no returns
A
Retailer 4
-
$6,917 USD
View
A
Retailer 5
-
$6,925 USD
View
Retailer 6
-
$6,934 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$7,008 USD
View
A
Retailer 8
-
$8,686 USD
£6,839 GBP
View
B+
Retailer 9
-
$9,876 USD
£7,776 GBP
View
B+
Retailer 10
-
$10,961 USD
€10,439 EUR
View
B+
Retailer 11
-
$11,740 USD
View
B+
Retailer 12
-
$14,185 USD
£11,169 GBP
View
B+
Retailer 13
-
$14,758 USD
ZAR 238,413 ZAR
View
B
Retailer 14
-
$15,515 USD
View
B
Retailer 15
-
$17,894 USD
View
B
Retailer 16
-
$18,704 USD
View
B
Retailer 17
-
$19,291 USD
View
B
Retailer 18
-
$20,404 USD
View
Retailer 19
-
$23,230 USD
View
Price last confirmed 37 days ago
B
Retailer 20
-
$24,211 USD
View
Most Expensive
B
With Clarity
808634528 · Oct 30
$35,236 USD
View
20 more retailers have this diamond
Prices start from $5,810 USDSave up to $29,426 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
4.29ct Cushion
$5,810 USD