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Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 2203906541

Certificate GIA 2203906541

Diamond specifications and retailer prices

From HK$28,089 HKD
As of November 6, 2026
Save HK$29,870 HKD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$57,959 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2203906541. Listed at 20 retailers as of November 4, 2026, with prices from HK$28,089 to HK$57,959, a HK$29,870 spread on the same certified stone. MOH London lists it at HK$57,959. 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

1.21
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2203906541
Dimensions6.42 × 5.69 × 3.79 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.42 mm5.69 mm1.21 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2203906541
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.6%

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$57,959 HKD|Low: HK$23,990 HKD|High: HK$58,815 HKD|Avg: HK$36,618 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3HK$28,089 HKD
Retailer 8HK$28,787 HKD
Retailer 7HK$29,085 HKD
Retailer 9HK$30,511 HKD
Retailer 11HK$33,058 HKD
Retailer 5HK$35,707 HKD
Retailer 10HK$36,781 HKD
Retailer 4HK$38,811 HKD
Retailer 2HK$39,767 HKD
Retailer 6HK$44,516 HKD
MOH LondonHK$57,959 HKD

45 data points across 11 retailers

20 retailersHK$28,089 HKD to HK$57,959 HKD

B+
Cheapest Retailer
-
HK$28,089 HKD
B+
Retailer 2
-
HK$28,505 HKD
View
B+
Retailer 3
-
HK$28,787 HKD
View
B
Retailer 4
-
HK$29,085 HKD
View
B
Retailer 5
-
HK$29,147 HKD
View
B
Retailer 6
-
HK$30,511 HKD
View
Final sale: no returns
B
Retailer 7
-
HK$31,428 HKD
View
B
Retailer 8
-
HK$32,909 HKD
View
Retailer 9
-
HK$33,058 HKD
View
Price last confirmed 9 days ago
B
Retailer 10
-
HK$33,591 HKD
View
Retailer 11
-
HK$33,740 HKD
View
Price last confirmed 15 days ago
B
Retailer 12
-
HK$35,104 HKD
View
B
Retailer 13
-
HK$35,707 HKD
View
Retailer 14
-
HK$36,781 HKD
View
Price last confirmed 29 days ago
B
Retailer 15
-
HK$38,058 HKD
View
B
Retailer 16
-
HK$38,811 HKD
View
B
Retailer 17
-
HK$39,767 HKD
View
B
Retailer 18
-
HK$44,516 HKD
View
C
Retailer 19
-
HK$52,777 HKD
View
Most Expensive
B
MOH London
134D3AFB4 · Nov 4
HK$57,959 HKD
£5,823 GBP
View
19 more retailers have this diamond
Prices start from HK$28,089 HKDSave up to HK$29,870 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+
1.21ct Heart
HK$28,089 HKD