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Radiant|Natural|GIA

1.20ct K SI2 Radiant Natural Diamond

ID • K/SI2 • GIA 6551583038

Certificate GIA 6551583038

Diamond specifications and retailer prices

From HK$10,330 HKD
As of November 6, 2026
Save HK$13,386 HKD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$34,069 HKD at NZ Jewellers · As of September 30, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551583038. Listed at 13 retailers as of November 4, 2026, with a 130% 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
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551583038
Dimensions7.21 × 5.07 × 3.54 mm
L/W Ratio1.42
Girdle conditionPolished
Top View
7.21 mm5.07 mm1.20 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551583038
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.9%

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$13,504 HKD|Low: HK$10,126 HKD|High: HK$24,868 HKD|Avg: HK$14,621 HKD|+3.1%
Retailer 1
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 2HK$10,330 HKD
Retailer 8HK$11,349 HKD
Retailer 9HK$11,380 HKD
Retailer 11HK$11,670 HKD
Retailer 7HK$11,944 HKD
Retailer 12HK$12,461 HKD
Retailer 3HK$13,496 HKD
Retailer 1HK$13,504 HKD
Retailer 4HK$14,147 HKD
Retailer 5HK$18,285 HKD
Retailer 10HK$20,597 HKD
Retailer 6HK$23,716 HKD

29 data points across 12 retailers

13 retailersHK$10,330 HKD to HK$23,716 HKD

A
Cheapest Retailer
-
HK$10,330 HKD
A
Retailer 2
-
HK$11,349 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$11,380 HKD
View
A
Retailer 4
-
HK$11,670 HKD
View
A
Retailer 5
-
HK$11,944 HKD
View
A
Retailer 6
-
HK$12,461 HKD
View
A
Retailer 7
-
HK$13,496 HKD
View
A
Retailer 8
-
HK$13,504 HKD
View
B+
Retailer 9
-
HK$14,147 HKD
View
B+
Retailer 10
-
HK$18,285 HKD
View
B
Retailer 11
-
HK$20,597 HKD
View
B
Retailer 12
-
HK$23,716 HKD
View
Most Expensive
NZ Jewellers
79e7fcab-a612-41d7-8952-94b47f2762fb · Sep 30
HK$34,069 HKD
$4,347 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from HK$10,330 HKDSave up to HK$13,386 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$10,330 HKD