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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5231970791

Certificate GIA 5231970791

Diamond specifications and retailer prices

From HK$16,247 HKD
As of November 5, 2026
Save HK$29,868 HKD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$46,115 HKD at NZ Jewellers · As of November 5, 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 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 5231970791. Listed at 8 retailers as of November 5, 2026, with prices from HK$16,247 to HK$46,115, a HK$29,868 spread on the same certified stone. NZ Jewellers lists it at HK$46,115. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle60.33°
OriginNatural
Grading LabGIA
CertificateGIA 5231970791
Dimensions7.10 × 5.34 × 3.67 mm
L/W Ratio1.33
Key to symbols
Cloud, Crystal, Feather, Needle, Natural
Top View
7.10 mm5.34 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231970791
Side View
Table 67.0%CrownGirdle: ThickPavilion 60.33°Culet: 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 5
Current: HK$46,115 HKD|Low: HK$16,247 HKD|High: HK$49,485 HKD|Avg: HK$27,323 HKD|+10.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 5HK$16,247 HKD
Retailer 7HK$20,996 HKD
Retailer 6HK$22,062 HKD
Retailer 4HK$22,603 HKD
Retailer 3HK$22,909 HKD
Retailer 8HK$23,881 HKD
Retailer 2HK$38,435 HKD
NZ JewellersHK$46,115 HKD

33 data points across 8 retailers

8 retailersHK$16,247 HKD to HK$46,115 HKD

A
Cheapest Retailer
-
HK$16,247 HKD
B+
Retailer 2
-
HK$20,996 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$22,062 HKD
View
B+
Retailer 4
-
HK$22,603 HKD
View
B+
Retailer 5
-
HK$22,909 HKD
View
B
Retailer 6
-
HK$23,881 HKD
View
B
Retailer 7
-
HK$38,435 HKD
View
Most Expensive
B
NZ Jewellers
823fe09c-94bc-410d-a984-a81c7c49cc42 · Nov 5
HK$46,115 HKD
$5,884 USD
View
7 more retailers have this diamond
Prices start from HK$16,247 HKDSave up to HK$29,868 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$16,247 HKD