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Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5506549779

Certificate GIA 5506549779

Diamond specifications and retailer prices

From HK$36,566 HKD
As of November 4, 2026
Save HK$33,570 HKD (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$70,136 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 5506549779. Listed at 16 retailers as of November 4, 2026, with prices from HK$36,566 to HK$70,136, a HK$33,570 spread on the same certified stone. NZ Jewellers lists it at HK$70,136. 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5506549779
Dimensions6.86 × 6.80 × 4.31 mm
L/W Ratio1.01
Top View
6.86 mm6.80 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5506549779
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

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$44,576 HKD|Low: HK$36,566 HKD|High: HK$65,962 HKD|Avg: HK$44,888 HKD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6HK$36,566 HKD
Retailer 7HK$38,708 HKD
Retailer 3HK$39,132 HKD
Retailer 4HK$40,246 HKD
Retailer 9HK$41,933 HKD
Retailer 8HK$42,270 HKD
Retailer 1HK$44,576 HKD
Retailer 2HK$51,159 HKD
Retailer 5HK$65,005 HKD

38 data points across 9 retailers

16 retailersHK$36,566 HKD to HK$70,136 HKD

B+
Cheapest Retailer
-
HK$36,566 HKD
B+
Retailer 2
-
HK$38,708 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$39,132 HKD
View
B+
Retailer 4
-
HK$39,304 HKD
View
B+
Retailer 5
-
HK$40,246 HKD
View
B+
Retailer 6
-
HK$41,933 HKD
View
Retailer 7
-
HK$41,933 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$41,933 HKD
View
Retailer 9
-
HK$42,270 HKD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
HK$43,133 HKD
View
B+
Retailer 11
-
HK$44,576 HKD
View
B
Retailer 12
-
HK$48,389 HKD
View
B
Retailer 13
-
HK$51,159 HKD
View
B
Retailer 14
-
HK$65,005 HKD
View
B
Retailer 15
-
HK$69,320 HKD
View
Most Expensive
B
NZ Jewellers
1b6d518d-5cca-4551-b172-f30750849a94 · Nov 5
HK$70,136 HKD
$8,940 USD
View
15 more retailers have this diamond
Prices start from HK$36,566 HKDSave up to HK$33,570 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$36,566 HKD