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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 $14,240 AUD
$10,003 USD
As of November 1, 2026
Save $36,408 AUD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $50,649 AUD at Taylor and Hart · As of October 31, 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 31, 2026, with prices from $14,240 to $50,649, a $36,408 spread on the same certified stone. Taylor and Hart lists it at $50,649. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $26,172 AUD|Low: $11,852 AUD|High: $50,649 AUD|Avg: $25,290 AUD|-3.5%
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
November 1, 2026
Retailer 5$11,852 AUD
Retailer 12$14,240 AUD
Retailer 13$15,729 AUD
Retailer 2$16,101 AUD
Retailer 8$16,292 AUD
Retailer 9$17,394 AUD
Retailer 6$19,371 AUD
Retailer 4$23,345 AUD
Retailer 1$26,172 AUD
Retailer 11$30,113 AUD
Retailer 7$33,102 AUD
Retailer 10$41,720 AUD
Retailer 3$45,389 AUD
Taylor and Hart$50,649 AUD

42 data points across 14 retailers

13 retailers$14,240 AUD to $50,649 AUD

A
Cheapest Retailer
-
$14,240 AUD
$10,003 USD
A
Retailer 2
-
$15,729 AUD
$11,049 USD
View
Final sale: no returns
A
Retailer 3
-
$16,101 AUD
$11,310 USD
View
Retailer 4
-
$16,292 AUD
$11,444 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$17,394 AUD
$12,218 USD
View
A
Retailer 6
-
$19,371 AUD
£10,714 GBP
View
A
Retailer 7
-
$23,345 AUD
£12,912 GBP
View
B+
Retailer 8
-
$26,172 AUD
£14,476 GBP
View
B+
Retailer 9
-
$30,113 AUD
$21,153 USD
View
B+
Retailer 10
-
$33,102 AUD
ZAR 375,648 ZAR
View
B
Retailer 11
-
$41,720 AUD
$29,306 USD
View
B
Retailer 12
-
$45,389 AUD
$31,883 USD
View
Most Expensive
B
Taylor and Hart
OFZ7J5I · Oct 31
$50,649 AUD
$35,578 USD
View
12 more retailers have this diamond
Prices start from $14,240 AUDSave up to $36,408 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
5.57ct Cushion
$14,240 AUD