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Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1548626456

Certificate GIA 1548626456

Diamond specifications and retailer prices

From HK$23,238 HKD
As of November 3, 2026
Save HK$18,292 HKD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$41,530 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant 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 1548626456. Listed at 8 retailers as of November 3, 2026, with prices from HK$23,238 to HK$41,530, a HK$18,292 spread on the same certified stone. NZ Jewellers lists it at HK$41,530. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle54.45°
Pavilion angle34.68°
OriginNatural
Grading LabGIA
CertificateGIA 1548626456
Dimensions6.81 × 5.33 × 3.71 mm
L/W Ratio1.28
Girdle conditionThick
Key to symbols
Crystal, Pinpoint
Top View
6.81 mm5.33 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1548626456
Side View
Table 72.0%Crown 54.45°Girdle: ThickPavilion 34.68°Culet: NoneDepth 69.6%

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 3
Current: HK$41,530 HKD|Low: HK$23,238 HKD|High: HK$42,541 HKD|Avg: HK$28,800 HKD|-2.4%
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
November 2, 2026
Retailer 9HK$23,238 HKD
Retailer 2HK$23,246 HKD
Retailer 8HK$23,841 HKD
Retailer 7HK$24,758 HKD
Retailer 11HK$25,009 HKD
Retailer 10HK$25,464 HKD
Retailer 5HK$26,898 HKD
Retailer 4HK$27,063 HKD
Retailer 13HK$28,027 HKD
Retailer 12HK$28,371 HKD
Retailer 3HK$29,735 HKD
Retailer 6HK$39,861 HKD
NZ JewellersHK$41,530 HKD

34 data points across 13 retailers

8 retailersHK$23,238 HKD to HK$41,530 HKD

A
Cheapest Retailer
-
HK$23,238 HKD
A
Retailer 2
-
HK$23,246 HKD
View
A
Retailer 3
-
HK$23,841 HKD
View
A
Retailer 4
-
HK$24,758 HKD
View
A
Retailer 5
-
HK$25,009 HKD
View
Retailer 6
-
HK$25,464 HKD
View
Price last confirmed 31 days ago
B
Retailer 7
-
HK$39,861 HKD
View
Most Expensive
B
NZ Jewellers
b32c0587-4dbb-4cc1-b33c-78e9665a1bb0 · Nov 3
HK$41,530 HKD
$5,299 USD
View
7 more retailers have this diamond
Prices start from HK$23,238 HKDSave up to HK$18,292 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
1.21ct Radiant
HK$23,238 HKD