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Cushion|Lab Grown|IGI

4.25ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664762

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846664762

Diamond specifications and retailer prices

From $10,268 AUD
$7,213 USD
As of November 1, 2026
Save $18,038 AUD (64%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $28,307 AUD at With Clarity · As of November 1, 2026
View at With Clarity

About this 4.25ct lab-grown cushion diamond

This 4.25ct 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 LG846664762 or 846664762. Listed at 3 retailers as of November 1, 2026, with prices from $10,268 to $28,307, a $18,038 spread on the same certified stone. With Clarity lists it at $28,307. 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

4.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664762
Dimensions11.49 × 8.32 × 5.57 mm
L/W Ratio1.38
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
11.49 mm8.32 mm4.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664762
Side View
Table 57.0%Crown 31.7°Girdle: STK-THKPavilion 34.8°CuletDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $14,202 AUD|Low: $10,268 AUD|High: $28,307 AUD|Avg: $17,592 AUD
Retailer 1
Retailer 2
With Clarity
November 1, 2026
Retailer 2$10,268 AUD
Retailer 1$14,202 AUD
With Clarity$28,307 AUD

1 data point across 3 retailers

3 retailers$10,268 AUD to $28,307 AUD

A
Cheapest Retailer
-
$10,268 AUD
$7,213 USD
B+
Retailer 2
-
$14,202 AUD
£7,855 GBP
View
Most Expensive
B
With Clarity
846664762 · Nov 1
$28,307 AUD
$19,884 USD
View
2 more retailers have this diamond
Prices start from $10,268 AUDSave up to $18,038 AUD

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
4.25ct Cushion
$10,268 AUD