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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 2245018786

Certificate GIA 2245018786

Diamond specifications and retailer prices

From HK$21,764 HKD
As of November 6, 2026
Save HK$26,483 HKD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$50,144 HKD at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct 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 2245018786. Listed at 22 retailers as of November 4, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245018786
Dimensions6.88 × 5.27 × 3.67 mm
L/W Ratio1.31
Girdle conditionPolished
Top View
6.88 mm5.27 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245018786
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.7%

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$27,611 HKD|Low: HK$21,365 HKD|High: HK$49,423 HKD|Avg: HK$28,678 HKD|+0.7%
Retailer 1
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
November 7, 2026
Retailer 8HK$21,764 HKD
Retailer 18HK$22,948 HKD
Retailer 2HK$23,442 HKD
Retailer 10HK$24,186 HKD
Retailer 12HK$24,641 HKD
Retailer 4HK$25,315 HKD
Retailer 5HK$25,362 HKD
Retailer 11HK$25,785 HKD
Retailer 16HK$26,036 HKD
Retailer 9HK$26,326 HKD
Retailer 6HK$26,804 HKD
Retailer 1HK$27,611 HKD
Retailer 13HK$28,066 HKD
Retailer 7HK$29,727 HKD
Retailer 14HK$33,685 HKD
Retailer 15HK$35,315 HKD
Retailer 3HK$44,038 HKD
Retailer 17HK$48,247 HKD

19 data points across 18 retailers

22 retailersHK$21,764 HKD to HK$48,247 HKD

A
Cheapest Retailer
-
HK$21,764 HKD
A
Retailer 2
-
HK$22,948 HKD
View
A
Retailer 3
-
HK$23,442 HKD
View
B+
Retailer 4
-
HK$24,186 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$24,641 HKD
View
A
Retailer 6
-
HK$25,315 HKD
View
A
Retailer 7
-
HK$25,362 HKD
View
A
Retailer 8
-
HK$25,785 HKD
View
A
Retailer 9
-
HK$26,036 HKD
View
A
Retailer 10
-
HK$26,326 HKD
View
B+
Retailer 11
-
HK$26,804 HKD
View
B+
Retailer 12
-
HK$27,611 HKD
View
B+
Retailer 13
-
HK$28,066 HKD
View
B+
Retailer 14
-
HK$28,669 HKD
View
Retailer 15
-
HK$29,618 HKD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
HK$29,727 HKD
View
Retailer 17
-
HK$30,989 HKD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
HK$33,685 HKD
View
B+
Retailer 19
-
HK$35,315 HKD
View
B
Retailer 20
-
HK$44,038 HKD
View
B
Retailer 21
-
HK$48,247 HKD
View
Most Expensive
NZ Jewellers
1423e8c1-e719-4934-8b1e-4f5e77c950b6 · Oct 11
HK$50,144 HKD
$6,398 USD
View
Price last confirmed 26 days ago
21 more retailers have this diamond
Prices start from HK$21,764 HKDSave up to HK$26,483 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
1.20ct Radiant
HK$21,764 HKD