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Heart|Natural|GIA

1.21ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6157010233

Certificate GIA 6157010233

Diamond specifications and retailer prices

From HK$30,785 HKD
As of November 6, 2026
Save HK$37,855 HKD (55%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$68,640 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6157010233. Listed at 9 retailers as of November 5, 2026, with prices from HK$30,785 to HK$68,640, a HK$37,855 spread on the same certified stone. NZ Jewellers lists it at HK$68,640. 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

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

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6157010233
Dimensions7.33 × 7.70 × 3.58 mm
L/W Ratio1.05
Top View
7.33 mm7.70 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6157010233
Side View
Table 58.0%CrownGirdle: MED-EXTPavilionCulet: NoneDepth 46.5%

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$68,640 HKD|Low: HK$30,785 HKD|High: HK$68,640 HKD|Avg: HK$45,402 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5HK$30,785 HKD
Retailer 6HK$35,692 HKD
Retailer 7HK$35,692 HKD
Retailer 3HK$39,171 HKD
Retailer 8HK$41,186 HKD
Retailer 2HK$44,336 HKD
Retailer 4HK$62,754 HKD
NZ JewellersHK$68,640 HKD

43 data points across 8 retailers

9 retailersHK$30,785 HKD to HK$68,640 HKD

B+
Cheapest Retailer
-
HK$30,785 HKD
B
Retailer 2
-
HK$35,692 HKD
View
B
Retailer 3
-
HK$35,692 HKD
View
B
Retailer 4
-
HK$39,171 HKD
View
B
Retailer 5
-
HK$41,186 HKD
View
B
Retailer 6
-
HK$44,336 HKD
View
B
Retailer 7
-
HK$57,589 HKD
View
B
Retailer 8
-
HK$62,754 HKD
View
Most Expensive
B
NZ Jewellers
4d776d7f-8c59-4e0a-82a6-bbebfabea9df · Nov 5
HK$68,640 HKD
$8,758 USD
View
8 more retailers have this diamond
Prices start from HK$30,785 HKDSave up to HK$37,855 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$30,785 HKD