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Cushion|Lab Grown|IGI

4.57ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662864

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662864

Diamond specifications and retailer prices

From $4,429 USD
£3,488 GBP
As of November 2, 2026
Save $21,555 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $25,984 USD at With Clarity · As of November 3, 2026
View at With Clarity

About this 4.57ct lab-grown cushion diamond

This 4.57ct 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 LG846662864 or 846662864. Listed at 10 retailers as of November 2, 2026, with prices from $4,429 to $25,984, a $21,555 spread on the same certified stone. With Clarity lists it at $25,984. 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

4.57
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662864
Dimensions10.93 × 8.99 × 6.04 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
10.93 mm8.99 mm4.57 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662864
Side View
Table 58.0%Crown 37.3°Girdle: MED-THKPavilion 36.8°Culet: NoneDepth 67.2%

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: $11,411 USD|Low: $4,429 USD|High: $26,726 USD|Avg: $11,388 USD|-0.9%
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$4,429 USD
Retailer 7$4,925 USD
Retailer 5$5,355 USD
Retailer 6$8,103 USD
Retailer 4$8,226 USD
Retailer 3$11,011 USD
Retailer 1$11,411 USD
Retailer 8$12,241 USD
Retailer 9$13,290 USD
With Clarity$25,984 USD

12 data points across 10 retailers

10 retailers$4,429 USD to $25,984 USD

A+
Cheapest Retailer
-
$4,429 USD
£3,488 GBP
A
Retailer 2
-
$4,925 USD
View
A
Retailer 3
-
$5,355 USD
View
A
Retailer 4
-
$8,103 USD
View
A
Retailer 5
-
$8,226 USD
View
B+
Retailer 6
-
$11,011 USD
£8,670 GBP
View
B+
Retailer 7
-
$11,411 USD
€10,868 EUR
View
B+
Retailer 8
-
$12,241 USD
View
B+
Retailer 9
-
$13,290 USD
View
Most Expensive
B
With Clarity
846662864 · Nov 3
$25,984 USD
View
9 more retailers have this diamond
Prices start from $4,429 USDSave up to $21,555 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+
4.57ct Cushion
$4,429 USD