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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 $121,857 AUD
$85,610 USD
As of October 29, 2026
Save $82,233 AUD (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $204,090 AUD at Adiamor · As of October 30, 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 $121,857 to $204,090, a $82,233 spread on the same certified stone. Adiamor lists it at $204,090. 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: $204,090 AUD|Low: $121,857 AUD|High: $226,950 AUD|Avg: $164,836 AUD|-3.5%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 2$121,857 AUD
Retailer 5$123,281 AUD
Retailer 4$127,057 AUD
Retailer 3$186,918 AUD
Adiamor$204,090 AUD

10 data points across 5 retailers

5 retailers$121,857 AUD to $204,090 AUD

B+
Cheapest Retailer
-
$121,857 AUD
$85,610 USD
Retailer 2
-
$123,281 AUD
$86,610 USD
View
Price last confirmed 17 days ago
B
Retailer 3
-
$127,057 AUD
$89,263 USD
View
Final sale: no returns
B
Retailer 4
-
$186,918 AUD
$131,318 USD
View
Most Expensive
B
Adiamor
D-81749790 · Oct 30
$204,090 AUD
$143,382 USD
View
4 more retailers have this diamond
Prices start from $121,857 AUDSave up to $82,233 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.

B+
52.56ct Cushion
$121,857 AUD