Cushion|Lab Grown|IGI

4.56ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846664765

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846664765

Diamond specifications and retailer prices

From $8,071 USD
As of November 2, 2026
Save $26,498 USD (77%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $34,569 USD at With Clarity · As of November 2, 2026
View at With Clarity

About this 4.56ct lab-grown cushion diamond

This 4.56ct 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 LG846664765 or 846664765. Listed at 4 retailers as of November 2, 2026, with prices from $8,071 to $34,569, a $26,498 spread on the same certified stone. With Clarity lists it at $34,569. 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

4.56
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846664765
Dimensions10.89 × 8.91 × 5.99 mm
L/W Ratio1.22
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
10.89 mm8.91 mm4.56 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846664765
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $8,071 USD|Low: $8,071 USD|High: $34,569 USD|Avg: $16,514 USD
Retailer 1
Retailer 2
Retailer 3
With Clarity
November 2, 2026
Retailer 1$8,071 USD
Retailer 3$8,208 USD
Retailer 2$10,988 USD
With Clarity$34,569 USD

2 data points across 4 retailers

4 retailers$8,071 USD to $34,569 USD

A
Cheapest Retailer
-
$8,071 USD
A
Retailer 2
-
$8,208 USD
View
B+
Retailer 3
-
$10,988 USD
£8,652 GBP
View
Most Expensive
B
With Clarity
846664765 · Nov 2
$34,569 USD
View
3 more retailers have this diamond
Prices start from $8,071 USDSave up to $26,498 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
4.56ct Cushion
$8,071 USD