Cushion|Lab Grown|IGI

4.29ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG787620793

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG787620793

Diamond specifications and retailer prices

From $4,828 USD
As of October 30, 2026
Save $15,438 USD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,266 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 LG787620793 or 787620793. Listed at 13 retailers as of October 30, 2026, with prices from $4,828 to $20,266, a $15,438 spread on the same certified stone. With Clarity lists it at $20,266. 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 angle36.1°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787620793
Dimensions10.59 × 8.81 × 5.78 mm
L/W Ratio1.20
Girdle conditionFaceted
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
10.59 mm8.81 mm4.29 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787620793
Side View
Table 60.0%Crown 36.1°Girdle: THK-VTKPavilion 36.5°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
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: $6,368 USD|Low: $4,828 USD|High: $25,367 USD|Avg: $12,178 USD|-5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 31, 2026
Retailer 5$4,828 USD
Retailer 1$6,368 USD
Retailer 11$6,387 USD
Retailer 8$6,632 USD
Retailer 12$8,405 USD
Retailer 4$8,630 USD
Retailer 6$9,569 USD
Retailer 10$10,884 USD
Retailer 2$11,354 USD
Retailer 7$13,290 USD
Retailer 3$14,723 USD
Retailer 9$18,245 USD
With Clarity$20,266 USD

38 data points across 13 retailers

13 retailers$4,828 USD to $20,266 USD

A
Cheapest Retailer
-
$4,828 USD
A
Retailer 2
-
$6,368 USD
View
A
Retailer 3
-
$6,387 USD
HK$49,900 HKD
View
A
Retailer 4
-
$6,632 USD
£5,222 GBP
View
A
Retailer 5
-
$8,405 USD
€8,005 EUR
View
A
Retailer 6
-
$8,630 USD
View
B+
Retailer 7
-
$9,569 USD
View
B+
Retailer 8
-
$10,884 USD
ZAR 175,837 ZAR
View
B+
Retailer 9
-
$11,354 USD
£8,940 GBP
View
B+
Retailer 10
-
$13,290 USD
View
B+
Retailer 11
-
$14,723 USD
View
B
Retailer 12
-
$18,245 USD
View
Most Expensive
B
With Clarity
787620793 · Oct 30
$20,266 USD
View
12 more retailers have this diamond
Prices start from $4,828 USDSave up to $15,438 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
$4,828 USD