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Cushion|Lab Grown|IGI

4.54ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663140

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663140

Diamond specifications and retailer prices

From $4,401 USD
£3,466 GBP
As of November 2, 2026
Save $30,017 USD (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $34,418 USD at With Clarity · As of November 3, 2026
View at With Clarity

About this 4.54ct lab-grown cushion diamond

This 4.54ct 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 LG846663140 or 846663140. Listed at 9 retailers as of November 2, 2026, with prices from $4,401 to $34,418, a $30,017 spread on the same certified stone. With Clarity lists it at $34,418. 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

4.54
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663140
Dimensions10.95 × 8.62 × 5.87 mm
L/W Ratio1.27
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 mm8.62 mm4.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663140
Side View
Table 60.0%Crown 36°Girdle: STK-THKPavilion 35.4°Culet: NoneDepth 68.1%

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: $11,337 USD|Low: $4,401 USD|High: $35,401 USD|Avg: $12,270 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
November 2, 2026
Retailer 2$4,401 USD
Retailer 5$5,320 USD
Retailer 6$8,009 USD
Retailer 4$8,175 USD
Retailer 3$10,942 USD
Retailer 1$11,337 USD
Retailer 7$12,161 USD
Retailer 8$13,200 USD
With Clarity$34,418 USD

9 data points across 9 retailers

9 retailers$4,401 USD to $34,418 USD

A+
Cheapest Retailer
-
$4,401 USD
£3,466 GBP
A
Retailer 2
-
$5,320 USD
View
A
Retailer 3
-
$8,009 USD
View
A
Retailer 4
-
$8,175 USD
View
B+
Retailer 5
-
$10,942 USD
£8,616 GBP
View
B+
Retailer 6
-
$11,337 USD
€10,797 EUR
View
B+
Retailer 7
-
$12,161 USD
View
B+
Retailer 8
-
$13,200 USD
View
Most Expensive
B
With Clarity
846663140 · Nov 3
$34,418 USD
View
8 more retailers have this diamond
Prices start from $4,401 USDSave up to $30,017 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+
4.54ct Cushion
$4,401 USD