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Radiant|Natural|GIA

1.21ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2231483721

Certificate GIA 2231483721

Diamond specifications and retailer prices

From HK$22,800 HKD
$2,906 USD
As of November 2, 2026
Save HK$25,106 HKD (52%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$47,906 HKD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231483721. Listed at 15 retailers as of October 30, 2026, with prices from HK$22,800 to HK$47,906, a HK$25,106 spread on the same certified stone. NZ Jewellers lists it at HK$47,906. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2231483721
Dimensions6.94 × 5.28 × 3.69 mm
L/W Ratio1.31
Culet sizeNone
Top View
6.94 mm5.28 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2231483721
Side View
Table 68.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.0%

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 2
Current: HK$47,906 HKD|Low: HK$22,800 HKD|High: HK$47,906 HKD|Avg: HK$30,336 HKD
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 3HK$22,800 HKD
Retailer 13HK$24,910 HKD
Retailer 15HK$24,910 HKD
Retailer 4HK$25,062 HKD
Retailer 14HK$25,867 HKD
Retailer 6HK$26,079 HKD
Retailer 5HK$27,268 HKD
Retailer 9HK$28,738 HKD
Retailer 12HK$28,747 HKD
Retailer 7HK$28,982 HKD
Retailer 16HK$31,163 HKD
Retailer 8HK$31,287 HKD
Retailer 2HK$32,186 HKD
Retailer 11HK$33,800 HKD
Retailer 10HK$45,984 HKD
NZ JewellersHK$47,906 HKD

18 data points across 16 retailers

15 retailersHK$22,800 HKD to HK$47,906 HKD

B+
Cheapest Retailer
-
HK$22,800 HKD
$2,906 USD
B+
Retailer 2
-
HK$24,910 HKD
$3,175 USD
View
B+
Retailer 3
-
HK$24,910 HKD
$3,175 USD
View
B
Retailer 4
-
HK$25,062 HKD
$3,194 USD
View
B
Retailer 5
-
HK$25,867 HKD
$3,297 USD
View
B
Retailer 6
-
HK$26,079 HKD
$3,324 USD
View
B+
Retailer 7
-
HK$27,268 HKD
CA$4,827 CAD
View
B
Retailer 8
-
HK$28,738 HKD
£2,884 GBP
View
B
Retailer 9
-
HK$28,747 HKD
$3,664 USD
View
B
Retailer 10
-
HK$28,982 HKD
$3,694 USD
View
Retailer 11
-
HK$31,163 HKD
$3,972 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
HK$32,186 HKD
€3,907 EUR
View
B
Retailer 13
-
HK$33,800 HKD
ZAR 69,598 ZAR
View
B
Retailer 14
-
HK$45,984 HKD
£4,615 GBP
View
Most Expensive
B
NZ Jewellers
304b2cca-abd9-424a-9469-a079e08a804e · Oct 30
HK$47,906 HKD
$6,106 USD
View
14 more retailers have this diamond
Prices start from HK$22,800 HKDSave up to HK$25,106 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 Radiant
HK$22,800 HKD