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Cushion|Lab Grown|IGI

4.39ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662158

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662158

Diamond specifications and retailer prices

From $4,000 USD
£3,150 GBP
As of November 2, 2026
Save $16,539 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $20,539 USD at With Clarity · As of November 2, 2026
View at With Clarity

About this 4.39ct lab-grown cushion diamond

This 4.39ct 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 LG846662158 or 846662158. Listed at 10 retailers as of November 2, 2026, with prices from $4,000 to $20,539, a $16,539 spread on the same certified stone. With Clarity lists it at $20,539. 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

4.39
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662158
Dimensions10.95 × 8.56 × 5.82 mm
L/W Ratio1.28
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
10.95 mm8.56 mm4.39 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662158
Side View
Table 62.0%Crown 35.3°Girdle: MED-THKPavilion 36.6°Culet: NoneDepth 68.0%

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: Nov 2
Current: $9,582 USD|Low: $4,000 USD|High: $23,060 USD|Avg: $10,040 USD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
November 2, 2026
Retailer 2$4,000 USD
Retailer 5$4,472 USD
Retailer 6$4,855 USD
Retailer 8$6,745 USD
Retailer 4$7,435 USD
Retailer 1$9,582 USD
Retailer 9$9,676 USD
Retailer 3$9,944 USD
Retailer 7$13,610 USD
With Clarity$20,539 USD

12 data points across 10 retailers

10 retailers$4,000 USD to $20,539 USD

A+
Cheapest Retailer
-
$4,000 USD
£3,150 GBP
A
Retailer 2
-
$4,472 USD
View
A
Retailer 3
-
$4,855 USD
View
A
Retailer 4
-
$6,745 USD
View
A
Retailer 5
-
$7,435 USD
View
B+
Retailer 6
-
$9,582 USD
€9,126 EUR
View
B+
Retailer 7
-
$9,676 USD
View
B+
Retailer 8
-
$9,944 USD
£7,830 GBP
View
B+
Retailer 9
-
$13,610 USD
View
Most Expensive
B
With Clarity
846662158 · Nov 2
$20,539 USD
View
9 more retailers have this diamond
Prices start from $4,000 USDSave up to $16,539 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+
4.39ct Cushion
$4,000 USD