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Round|Natural|GIA

1.23ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6365160641

Certificate GIA 6365160641

Diamond specifications and retailer prices

From HK$11,446 HKD
As of November 1, 2026
Save HK$9,540 HKD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$37,626 HKD at NZ Jewellers · As of October 30, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6365160641. Listed at 13 retailers as of November 1, 2026, with a 83% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6365160641
Dimensions6.82 × 6.78 × 4.26 mm
L/W Ratio1.01
Top View
6.82 mm6.78 mm1.23 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6365160641
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 62.6%

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$37,626 HKD|Low: HK$10,638 HKD|High: HK$37,626 HKD|Avg: HK$17,526 HKD|+5.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 8HK$11,446 HKD
Retailer 14HK$13,933 HKD
Retailer 11HK$14,906 HKD
Retailer 7HK$15,243 HKD
Retailer 5HK$15,424 HKD
Retailer 13HK$15,424 HKD
Retailer 3HK$15,730 HKD
Retailer 4HK$16,138 HKD
Retailer 12HK$16,506 HKD
Retailer 10HK$17,801 HKD
Retailer 9HK$18,954 HKD
Retailer 2HK$20,986 HKD
Retailer 6HK$23,716 HKD
NZ JewellersHK$37,626 HKD

26 data points across 14 retailers

13 retailersHK$11,446 HKD to HK$20,986 HKD

A
Cheapest Retailer
-
HK$11,446 HKD
B+
Retailer 2
-
HK$13,933 HKD
View
B+
Retailer 3
-
HK$14,906 HKD
View
B+
Retailer 4
-
HK$15,243 HKD
View
B+
Retailer 5
-
HK$15,424 HKD
View
Retailer 6
-
HK$15,424 HKD
View
Price last confirmed 8 days ago
B
Retailer 7
-
HK$15,730 HKD
View
Retailer 8
-
HK$16,138 HKD
View
Price last confirmed 8 days ago
B
Retailer 9
-
HK$16,506 HKD
View
B
Retailer 10
-
HK$17,801 HKD
View
B
Retailer 11
-
HK$18,954 HKD
View
B
Retailer 12
-
HK$20,986 HKD
View
Most Expensive
NZ Jewellers
922048f7-14f0-4f67-93c2-cd5dfe544109 · Oct 30
HK$37,626 HKD
$4,796 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from HK$11,446 HKDSave up to HK$9,540 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
1.23ct Round
HK$11,446 HKD