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Round|Natural|GIA

5.23ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6555488071

Certificate GIA 6555488071

Diamond specifications and retailer prices

From HK$442,247 HKD
SGD 76,173 SGD
As of November 1, 2026
Save HK$43,653 HKD (9%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$485,900 HKD at Brilliance · As of October 30, 2026
View at Brilliance

About this 5.23ct natural round diamond

This 5.23ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555488071. Listed at 3 retailers as of October 30, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.23
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555488071
Dimensions11.00 × 11.06 × 6.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
11.00 mm11.06 mm5.23 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555488071
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.8%

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: HK$485,900 HKD|Low: HK$388,042 HKD|High: HK$882,147 HKD|Avg: HK$515,802 HKD
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5HK$388,042 HKD
Retailer 4HK$409,851 HKD
Retailer 3HK$442,247 HKD
Retailer 2HK$447,633 HKD
BrillianceHK$485,900 HKD
Retailer 6HK$541,507 HKD
Retailer 7HK$882,147 HKD

30 data points across 7 retailers

3 retailersHK$442,247 HKD to HK$485,900 HKD

A
Cheapest Retailer
-
HK$442,247 HKD
SGD 76,173 SGD
A
Retailer 2
-
HK$447,633 HKD
£44,925 GBP
View
Most Expensive
B+
Brilliance
D44662999 · Oct 30
HK$485,900 HKD
$61,932 USD
View
2 more retailers have this diamond
Prices start from HK$442,247 HKDSave up to HK$43,653 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.

A
5.23ct Round
HK$442,247 HKD