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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 $17,748 NZD
$10,003 USD
As of November 1, 2026
Save $45,377 NZD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $63,126 NZD 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 $17,748 to $63,126, a $45,377 spread on the same certified stone. Taylor and Hart lists it at $63,126. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $32,620 NZD|Low: $14,772 NZD|High: $63,126 NZD|Avg: $31,520 NZD|-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$14,772 NZD
Retailer 12$17,748 NZD
Retailer 13$19,604 NZD
Retailer 2$20,067 NZD
Retailer 8$20,305 NZD
Retailer 9$21,678 NZD
Retailer 6$24,143 NZD
Retailer 4$29,095 NZD
Retailer 1$32,620 NZD
Retailer 11$37,532 NZD
Retailer 7$41,257 NZD
Retailer 10$51,998 NZD
Retailer 3$56,571 NZD
Taylor and Hart$63,126 NZD

42 data points across 14 retailers

13 retailers$17,748 NZD to $63,126 NZD

A
Cheapest Retailer
-
$17,748 NZD
$10,003 USD
A
Retailer 2
-
$19,604 NZD
$11,049 USD
View
Final sale: no returns
A
Retailer 3
-
$20,067 NZD
$11,310 USD
View
Retailer 4
-
$20,305 NZD
$11,444 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$21,678 NZD
$12,218 USD
View
A
Retailer 6
-
$24,143 NZD
£10,714 GBP
View
A
Retailer 7
-
$29,095 NZD
£12,912 GBP
View
B+
Retailer 8
-
$32,620 NZD
£14,476 GBP
View
B+
Retailer 9
-
$37,532 NZD
$21,153 USD
View
B+
Retailer 10
-
$41,257 NZD
ZAR 375,648 ZAR
View
B
Retailer 11
-
$51,998 NZD
$29,306 USD
View
B
Retailer 12
-
$56,571 NZD
$31,883 USD
View
Most Expensive
B
Taylor and Hart
OFZ7J5I · Oct 31
$63,126 NZD
$35,578 USD
View
12 more retailers have this diamond
Prices start from $17,748 NZDSave up to $45,377 NZD

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
$17,748 NZD