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Radiant|Natural|GIA

1.21ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2556361020

Certificate GIA 2556361020

Diamond specifications and retailer prices

From HK$22,768 HKD
As of November 6, 2026
Save HK$29,704 HKD (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$52,471 HKD at NZ Jewellers · As of November 5, 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 E 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 2556361020. Listed at 24 retailers as of November 5, 2026, with prices from HK$22,768 to HK$52,471, a HK$29,704 spread on the same certified stone. NZ Jewellers lists it at HK$52,471. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556361020
Dimensions7.05 × 5.43 × 3.73 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.05 mm5.43 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556361020
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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 6
Current: HK$52,471 HKD|Low: HK$22,572 HKD|High: HK$54,548 HKD|Avg: HK$33,387 HKD|-3.8%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 3HK$22,768 HKD
Retailer 16HK$23,598 HKD
Retailer 12HK$27,047 HKD
Retailer 7HK$27,157 HKD
Retailer 10HK$27,791 HKD
Retailer 21HK$28,356 HKD
Retailer 18HK$28,638 HKD
Retailer 2HK$28,959 HKD
Retailer 17HK$29,210 HKD
Retailer 6HK$30,119 HKD
Retailer 11HK$30,119 HKD
Retailer 13HK$30,503 HKD
Retailer 5HK$31,263 HKD
Retailer 9HK$31,271 HKD
Retailer 14HK$32,173 HKD
Retailer 8HK$34,751 HKD
Retailer 15HK$34,751 HKD
Retailer 19HK$35,057 HKD
Retailer 20HK$36,757 HKD
Retailer 22HK$50,363 HKD
Retailer 4HK$51,852 HKD
NZ JewellersHK$52,471 HKD

21 data points across 22 retailers

24 retailersHK$22,768 HKD to HK$52,471 HKD

A
Cheapest Retailer
-
HK$22,768 HKD
A
Retailer 2
-
HK$23,598 HKD
View
B+
Retailer 3
-
HK$27,047 HKD
View
B+
Retailer 4
-
HK$27,157 HKD
View
B+
Retailer 5
-
HK$27,791 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$28,356 HKD
View
B+
Retailer 7
-
HK$28,638 HKD
View
B+
Retailer 8
-
HK$28,959 HKD
View
B+
Retailer 9
-
HK$29,210 HKD
View
B+
Retailer 10
-
HK$29,578 HKD
View
Retailer 11
-
HK$30,119 HKD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$30,119 HKD
View
B+
Retailer 13
-
HK$30,503 HKD
View
B+
Retailer 14
-
HK$31,216 HKD
View
B+
Retailer 15
-
HK$31,263 HKD
View
B+
Retailer 16
-
HK$31,271 HKD
View
B+
Retailer 17
-
HK$32,173 HKD
View
Retailer 18
-
HK$34,524 HKD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
HK$34,751 HKD
View
B+
Retailer 20
-
HK$35,057 HKD
View
B+
Retailer 21
-
HK$36,757 HKD
View
B
Retailer 22
-
HK$50,363 HKD
View
Retailer 23
-
HK$51,852 HKD
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
85eed898-47ab-4f27-9696-efb97d0955f7 · Nov 5
HK$52,471 HKD
$6,695 USD
View
23 more retailers have this diamond
Prices start from HK$22,768 HKDSave up to HK$29,704 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$22,768 HKD