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Cushion|Lab Grown|IGI

52.56ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG821638952

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG821638952

Diamond specifications and retailer prices

From $151,898 NZD
$85,610 USD
As of October 29, 2026
Save $102,505 NZD (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $254,403 NZD at Adiamor · As of October 31, 2026
View at Adiamor

About this 52.56ct lab-grown cushion diamond

This 52.56ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821638952 or 821638952. Listed at 5 retailers as of October 29, 2026, with prices from $151,898 to $254,403, a $102,505 spread on the same certified stone. Adiamor lists it at $254,403. 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

52.56
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638952
Dimensions21.25 × 21.07 × 13.08 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
21.25 mm21.07 mm52.56 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638952
Side View
Table 62.0%Crown 37.2°Girdle: STK-THKPavilion 30.1°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $254,403 NZD|Low: $151,898 NZD|High: $282,898 NZD|Avg: $205,472 NZD|-3.5%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 2$151,898 NZD
Retailer 5$153,672 NZD
Retailer 4$158,379 NZD
Retailer 3$232,998 NZD
Adiamor$254,403 NZD

10 data points across 5 retailers

5 retailers$151,898 NZD to $254,403 NZD

B+
Cheapest Retailer
-
$151,898 NZD
$85,610 USD
Retailer 2
-
$153,672 NZD
$86,610 USD
View
Price last confirmed 18 days ago
B
Retailer 3
-
$158,379 NZD
$89,263 USD
View
Final sale: no returns
B
Retailer 4
-
$232,998 NZD
$131,318 USD
View
Most Expensive
B
Adiamor
D-81749790 · Oct 31
$254,403 NZD
$143,382 USD
View
4 more retailers have this diamond
Prices start from $151,898 NZDSave up to $102,505 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.

B+
52.56ct Cushion
$151,898 NZD