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Heart|Natural|GIA

1.23ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 2278523940

Certificate GIA 2278523940

Diamond specifications and retailer prices

From HK$18,504 HKD
As of November 6, 2026
Save HK$20,752 HKD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$39,257 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2278523940. Listed at 21 retailers as of November 4, 2026, with prices from HK$18,504 to HK$39,257, a HK$20,752 spread on the same certified stone. MOH London lists it at HK$39,257. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2278523940
Dimensions6.44 × 6.04 × 4.10 mm
L/W Ratio1.07
Top View
6.44 mm6.04 mm1.23 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2278523940
Side View
Table 62.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.8%

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 6
Current: HK$39,257 HKD|Low: HK$15,424 HKD|High: HK$44,771 HKD|Avg: HK$24,720 HKD|-12.2%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 17HK$18,504 HKD
Retailer 7HK$19,100 HKD
Retailer 3HK$19,170 HKD
Retailer 19HK$19,672 HKD
Retailer 20HK$20,126 HKD
Retailer 12HK$20,902 HKD
Retailer 18HK$20,965 HKD
Retailer 6HK$21,326 HKD
Retailer 10HK$21,600 HKD
Retailer 11HK$21,764 HKD
Retailer 16HK$23,136 HKD
Retailer 5HK$23,724 HKD
Retailer 2HK$24,978 HKD
Retailer 8HK$25,142 HKD
Retailer 14HK$25,809 HKD
Retailer 4HK$26,600 HKD
Retailer 15HK$28,724 HKD
Retailer 13HK$29,132 HKD
Retailer 9HK$33,928 HKD
MOH LondonHK$39,257 HKD

41 data points across 20 retailers

21 retailersHK$18,504 HKD to HK$39,257 HKD

B+
Cheapest Retailer
-
HK$18,504 HKD
B+
Retailer 2
-
HK$19,100 HKD
View
B+
Retailer 3
-
HK$19,170 HKD
View
B+
Retailer 4
-
HK$19,672 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$20,126 HKD
View
B+
Retailer 6
-
HK$20,902 HKD
View
B+
Retailer 7
-
HK$20,965 HKD
View
Retailer 8
-
HK$21,326 HKD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
HK$21,600 HKD
View
Retailer 10
-
HK$21,764 HKD
View
Price last confirmed 23 days ago
B
Retailer 11
-
HK$23,136 HKD
View
B
Retailer 12
-
HK$23,724 HKD
View
B
Retailer 13
-
HK$24,978 HKD
View
B
Retailer 14
-
HK$25,103 HKD
View
Retailer 15
-
HK$25,142 HKD
View
Price last confirmed 31 days ago
B+
Retailer 16
-
HK$25,809 HKD
View
B
Retailer 17
-
HK$26,600 HKD
View
B
Retailer 18
-
HK$28,724 HKD
View
B
Retailer 19
-
HK$29,132 HKD
View
B
Retailer 20
-
HK$33,928 HKD
View
Most Expensive
B
MOH London
45AC09C87 · Nov 4
HK$39,257 HKD
£3,944 GBP
View
20 more retailers have this diamond
Prices start from HK$18,504 HKDSave up to HK$20,752 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 Heart
HK$18,504 HKD