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Radiant|Natural|GIA

1.20ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 1565079351

Certificate GIA 1565079351

Diamond specifications and retailer prices

From HK$18,410 HKD
As of November 5, 2026
Save HK$15,769 HKD (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$34,179 HKD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565079351. Listed at 12 retailers as of November 5, 2026, with prices from HK$18,410 to HK$34,179, a HK$15,769 spread on the same certified stone. Helzberg Diamonds lists it at HK$34,179. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565079351
Dimensions7.34 × 5.42 × 3.66 mm
L/W Ratio1.35
Culet sizeNone
Top View
7.34 mm5.42 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565079351
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.5%

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$34,179 HKD|Low: HK$18,308 HKD|High: HK$34,884 HKD|Avg: HK$24,308 HKD|-2.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 7HK$18,410 HKD
Retailer 8HK$19,546 HKD
Retailer 9HK$19,883 HKD
Retailer 2HK$21,263 HKD
Retailer 4HK$21,647 HKD
Retailer 10HK$23,340 HKD
Retailer 12HK$23,512 HKD
Retailer 3HK$24,265 HKD
Retailer 5HK$24,946 HKD
Retailer 6HK$25,550 HKD
Retailer 11HK$32,337 HKD
Helzberg DiamondsHK$34,179 HKD

40 data points across 12 retailers

12 retailersHK$18,410 HKD to HK$34,179 HKD

A
Cheapest Retailer
-
HK$18,410 HKD
B+
Retailer 2
-
HK$19,546 HKD
View
B+
Retailer 3
-
HK$19,883 HKD
View
B+
Retailer 4
-
HK$21,263 HKD
View
B+
Retailer 5
-
HK$21,647 HKD
View
B+
Retailer 6
-
HK$23,340 HKD
View
B+
Retailer 7
-
HK$23,512 HKD
View
B
Retailer 8
-
HK$24,265 HKD
View
B+
Retailer 9
-
HK$24,946 HKD
View
B
Retailer 10
-
HK$25,550 HKD
View
B
Retailer 11
-
HK$32,337 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRHLMLGNPJLH · Nov 6
HK$34,179 HKD
$4,361 USD
View
11 more retailers have this diamond
Prices start from HK$18,410 HKDSave up to HK$15,769 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$18,410 HKD