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1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6345619250

Certificate GIA 6345619250

Diamond specifications and retailer prices

From HK$44,168 HKD
As of November 1, 2026
Save HK$30,567 HKD (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$74,735 HKD at MOH London · As of November 4, 2026
View at MOH London

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 6345619250. Listed at 8 retailers as of November 1, 2026, with prices from HK$44,168 to HK$74,735, a HK$30,567 spread on the same certified stone. MOH London lists it at HK$74,735. 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
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6345619250
Dimensions6.86 × 6.81 × 4.26 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.86 mm6.81 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6345619250
Side View
Table 57.0%Crown 36°Girdle: ThickPavilion 41°Culet: NoneDepth 62.3%

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 1
Current: HK$74,735 HKD|Low: HK$43,282 HKD|High: HK$75,841 HKD|Avg: HK$53,500 HKD|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4HK$44,168 HKD
Retailer 8HK$44,357 HKD
Retailer 6HK$45,471 HKD
Retailer 9HK$48,664 HKD
Retailer 5HK$50,280 HKD
Retailer 7HK$50,860 HKD
Retailer 2HK$55,254 HKD
Retailer 10HK$59,522 HKD
Retailer 3HK$62,056 HKD
MOH LondonHK$74,735 HKD

37 data points across 10 retailers

8 retailersHK$44,168 HKD to HK$74,735 HKD

B+
Cheapest Retailer
-
HK$44,168 HKD
B+
Retailer 2
-
HK$44,357 HKD
View
B+
Retailer 3
-
HK$45,471 HKD
View
Retailer 4
-
HK$50,280 HKD
View
Price last confirmed 28 days ago
Retailer 5
-
HK$50,860 HKD
View
Price last confirmed 8 days ago
B
Retailer 6
-
HK$55,254 HKD
View
B
Retailer 7
-
HK$62,056 HKD
View
Most Expensive
B
MOH London
F721B937A · Nov 4
HK$74,735 HKD
£7,501 GBP
View
7 more retailers have this diamond
Prices start from HK$44,168 HKDSave up to HK$30,567 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$44,168 HKD