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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 HK$671,730 HKD
$85,610 USD
As of October 28, 2026
Save HK$453,302 HKD (40%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$1,125,033 HKD at Adiamor · As of October 28, 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 28, 2026, with prices from HK$671,730 to HK$1,125,033, a HK$453,302 spread on the same certified stone. Adiamor lists it at HK$1,125,033. 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 28
Current: HK$1,125,033 HKD|Low: HK$671,730 HKD|High: HK$1,251,046 HKD|Avg: HK$908,650 HKD|-3.5%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 2HK$671,730 HKD
Retailer 5HK$679,577 HKD
Retailer 4HK$700,393 HKD
Retailer 3HK$1,030,374 HKD
AdiamorHK$1,125,033 HKD

10 data points across 5 retailers

5 retailersHK$671,730 HKD to HK$1,125,033 HKD

B+
Cheapest Retailer
-
HK$671,730 HKD
$85,610 USD
B
Retailer 2
-
HK$679,577 HKD
$86,610 USD
View
Price last confirmed 16 days ago
B
Retailer 3
-
HK$700,393 HKD
$89,263 USD
View
Final sale: no returns
B
Retailer 4
-
HK$1,030,374 HKD
$131,318 USD
View
Most Expensive
B
Adiamor
D-81749790 · Oct 28
HK$1,125,033 HKD
$143,382 USD
View
4 more retailers have this diamond
Prices start from HK$671,730 HKDSave up to HK$453,302 HKD

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
HK$671,730 HKD