CaratHunter
Plans
Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1533621018

Certificate GIA 1533621018

Diamond specifications and retailer prices

From HK$39,728 HKD
As of November 4, 2026
Save HK$43,549 HKD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$83,277 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1533621018. Listed at 10 retailers as of November 4, 2026, with prices from HK$39,728 to HK$83,277, a HK$43,549 spread on the same certified stone. NZ Jewellers lists it at HK$83,277. 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

1.23
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1533621018
Dimensions6.83 × 6.77 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
6.83 mm6.77 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533621018
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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 4
Current: HK$83,277 HKD|Low: HK$39,728 HKD|High: HK$83,277 HKD|Avg: HK$52,607 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11HK$39,728 HKD
Retailer 3HK$42,262 HKD
Retailer 9HK$45,110 HKD
Retailer 10HK$45,110 HKD
Retailer 2HK$47,150 HKD
Retailer 4HK$47,613 HKD
Retailer 8HK$47,746 HKD
Retailer 7HK$52,045 HKD
Retailer 5HK$53,975 HKD
Retailer 6HK$73,156 HKD
NZ JewellersHK$83,277 HKD

27 data points across 11 retailers

10 retailersHK$39,728 HKD to HK$83,277 HKD

B+
Cheapest Retailer
-
HK$39,728 HKD
B+
Retailer 2
-
HK$45,110 HKD
View
B+
Retailer 3
-
HK$45,110 HKD
View
B+
Retailer 4
-
HK$47,150 HKD
View
B+
Retailer 5
-
HK$47,613 HKD
View
B
Retailer 6
-
HK$47,746 HKD
View
B
Retailer 7
-
HK$52,045 HKD
View
B
Retailer 8
-
HK$53,975 HKD
View
B
Retailer 9
-
HK$73,156 HKD
View
Most Expensive
B
NZ Jewellers
0c31a0e1-85f9-4a60-822a-9c707874e1ce · Nov 5
HK$83,277 HKD
$10,615 USD
View
9 more retailers have this diamond
Prices start from HK$39,728 HKDSave up to HK$43,549 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+
1.23ct Round
HK$39,728 HKD