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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 $10,309 NZD
$5,810 USD
As of October 26, 2026
Save $52,211 NZD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $62,519 NZD at With Clarity · As of October 31, 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 $10,309 to $62,519, a $52,211 spread on the same certified stone. With Clarity lists it at $62,519. 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
Colour
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

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 26
Current: $25,035 NZD|Low: $9,954 NZD|High: $41,217 NZD|Avg: $20,612 NZD
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
November 1, 2026
Retailer 11$10,309 NZD
Retailer 6$12,273 NZD
Retailer 14$12,303 NZD
Retailer 2$12,434 NZD
Retailer 9$14,104 NZD
Retailer 7$15,412 NZD
Retailer 4$17,522 NZD
Retailer 8$19,312 NZD
Retailer 13$20,830 NZD
Retailer 1$25,035 NZD
Retailer 10$26,185 NZD
Retailer 12$27,528 NZD
Retailer 5$31,750 NZD
Retailer 3$41,217 NZD

44 data points across 14 retailers

21 retailers$10,309 NZD to $62,519 NZD

A
Cheapest Retailer
-
$10,309 NZD
$5,810 USD
A
Retailer 2
-
$11,457 NZD
CA$8,968 CAD
View
A
Retailer 3
-
$12,273 NZD
$6,917 USD
View
A
Retailer 4
-
$12,287 NZD
$6,925 USD
View
Retailer 5
-
$12,303 NZD
$6,934 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$12,434 NZD
$7,008 USD
View
A
Retailer 7
-
$14,104 NZD
$7,949 USD
View
Final sale: no returns
A
Retailer 8
-
$15,412 NZD
£6,839 GBP
View
B+
Retailer 9
-
$17,522 NZD
£7,776 GBP
View
B+
Retailer 10
-
$19,312 NZD
€10,366 EUR
View
B+
Retailer 11
-
$20,830 NZD
$11,740 USD
View
B+
Retailer 12
-
$25,035 NZD
£11,110 GBP
View
B+
Retailer 13
-
$26,185 NZD
ZAR 238,413 ZAR
View
B
Retailer 14
-
$27,528 NZD
$15,515 USD
View
B
Retailer 15
-
$31,750 NZD
$17,894 USD
View
B
Retailer 16
-
$33,187 NZD
$18,704 USD
View
B
Retailer 17
-
$34,228 NZD
$19,291 USD
View
B
Retailer 18
-
$36,203 NZD
$20,404 USD
View
Retailer 19
-
$41,217 NZD
$23,230 USD
View
Price last confirmed 39 days ago
B
Retailer 20
-
$42,957 NZD
$24,211 USD
View
Most Expensive
B
With Clarity
808634528 · Oct 31
$62,519 NZD
$35,236 USD
View
20 more retailers have this diamond
Prices start from $10,309 NZDSave up to $52,211 NZD

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
$10,309 NZD