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Cushion|Lab Grown|IGI

5.57ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799640078

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799640078

Diamond specifications and retailer prices

From $10,003 USD
As of October 29, 2026
Save $25,575 USD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $35,578 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.57ct lab-grown cushion diamond

This 5.57ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799640078 or 799640078. Listed at 13 retailers as of October 29, 2026, with prices from $10,003 to $35,578, a $25,575 spread on the same certified stone. Taylor and Hart lists it at $35,578. 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

5.57
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle27.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799640078
Dimensions12.46 × 9.12 × 5.50 mm
L/W Ratio1.37
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
12.46 mm9.12 mm5.57 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799640078
Side View
Table 62.0%Crown 32.6°Girdle: STK-THKPavilion 27.9°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
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: Oct 29
Current: $13,606 USD|Low: $8,325 USD|High: $35,578 USD|Avg: $17,857 USD|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
October 30, 2026
Retailer 5$8,325 USD
Retailer 12$10,003 USD
Retailer 13$11,049 USD
Retailer 2$11,310 USD
Retailer 8$11,444 USD
Retailer 9$12,218 USD
Retailer 1$13,606 USD
Retailer 4$16,398 USD
Retailer 7$18,484 USD
Retailer 11$21,153 USD
Retailer 6$23,253 USD
Retailer 10$29,306 USD
Retailer 3$31,883 USD
Taylor and Hart$35,578 USD

42 data points across 14 retailers

13 retailers$10,003 USD to $35,578 USD

A
Cheapest Retailer
-
$10,003 USD
A
Retailer 2
-
$11,049 USD
View
Final sale: no returns
A
Retailer 3
-
$11,310 USD
View
Retailer 4
-
$11,444 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$12,218 USD
View
A
Retailer 6
-
$13,606 USD
£10,714 GBP
View
A
Retailer 7
-
$16,398 USD
£12,912 GBP
View
B+
Retailer 8
-
$18,484 USD
£14,554 GBP
View
B+
Retailer 9
-
$21,153 USD
View
B+
Retailer 10
-
$23,253 USD
ZAR 375,648 ZAR
View
B
Retailer 11
-
$29,306 USD
View
B
Retailer 12
-
$31,883 USD
View
Most Expensive
B
Taylor and Hart
OFZ7J5I · Oct 30
$35,578 USD
View
12 more retailers have this diamond
Prices start from $10,003 USDSave up to $25,575 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
5.57ct Cushion
$10,003 USD