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Cushion|Natural|GIA

5.23ct J SI2 Cushion Natural Diamond

VG • J/SI2 • GIA 5212821506

Certificate GIA 5212821506

Diamond specifications and retailer prices

From HK$405,596 HKD
$51,694 USD
As of November 2, 2026
Save HK$108,416 HKD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$514,012 HKD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 5.23ct natural cushion diamond

This 5.23ct natural cushion sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5212821506. Listed at 4 retailers as of November 2, 2026, with prices from HK$405,596 to HK$514,012, a HK$108,416 spread on the same certified stone. 77 Diamonds lists it at HK$514,012. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.23
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5212821506
Dimensions10.64 × 9.90 × 6.56 mm
L/W Ratio1.07
Top View
10.64 mm9.90 mm5.23 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5212821506
Side View
Table 72.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.3%

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: Nov 2
Current: HK$514,012 HKD|Low: HK$405,596 HKD|High: HK$577,684 HKD|Avg: HK$458,716 HKD|-8.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 3HK$405,596 HKD
Retailer 2HK$431,834 HKD
Retailer 4HK$438,126 HKD
77 DiamondsHK$514,012 HKD

35 data points across 4 retailers

4 retailersHK$405,596 HKD to HK$514,012 HKD

B+
Cheapest Retailer
-
HK$405,596 HKD
$51,694 USD
B+
Retailer 2
-
HK$431,834 HKD
$55,038 USD
View
B+
Retailer 3
-
HK$438,126 HKD
$55,840 USD
View
Most Expensive
B
77 Diamonds
CUSMBSGVACRBF · Nov 3
HK$514,012 HKD
£51,584 GBP
View
3 more retailers have this diamond
Prices start from HK$405,596 HKDSave up to HK$108,416 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+
5.23ct Cushion
HK$405,596 HKD