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Cushion|Lab Grown|IGI

4.29ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780665785

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780665785

Diamond specifications and retailer prices

From $4,113 USD
As of October 29, 2026
Save $20,937 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $25,050 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG780665785 or 780665785. Listed at 11 retailers as of October 29, 2026, with prices from $4,113 to $25,050, a $20,937 spread on the same certified stone. Do Amore Diamonds lists it at $25,050. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665785
Dimensions10.81 × 8.72 × 5.69 mm
L/W Ratio1.24
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
10.81 mm8.72 mm4.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665785
Side View
Table 62.0%Crown 34.7°Girdle: STK-THKPavilion 35.6°Culet: NoneDepth 65.3%

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: $25,050 USD|Low: $4,113 USD|High: $33,160 USD|Avg: $11,319 USD|-24.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10$4,113 USD
Retailer 6$4,220 USD
Retailer 4$4,775 USD
Retailer 11$5,728 USD
Retailer 9$6,808 USD
Retailer 5$8,036 USD
Retailer 3$8,563 USD
Retailer 7$10,038 USD
Retailer 8$11,585 USD
Retailer 2$13,290 USD
Do Amore Diamonds$25,050 USD

28 data points across 11 retailers

11 retailers$4,113 USD to $25,050 USD

A+
Cheapest Retailer
-
$4,113 USD
A
Retailer 2
-
$4,220 USD
View
A
Retailer 3
-
$4,775 USD
View
A
Retailer 4
-
$5,728 USD
View
Final sale: no returns
A
Retailer 5
-
$6,808 USD
View
A
Retailer 6
-
$8,036 USD
€7,653 EUR
View
Retailer 7
-
$8,563 USD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$10,038 USD
£7,904 GBP
View
B+
Retailer 9
-
$11,585 USD
View
B+
Retailer 10
-
$13,290 USD
View
Most Expensive
B
Do Amore Diamonds
27-BE0FC0767 · Oct 30
$25,050 USD
View
10 more retailers have this diamond
Prices start from $4,113 USDSave up to $20,937 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
$4,113 USD