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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 2186430328

Certificate GIA 2186430328

Diamond specifications and retailer prices

From HK$16,380 HKD
As of November 4, 2026
Save HK$19,774 HKD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$45,402 HKD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2186430328. Listed at 14 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2186430328
Dimensions6.91 × 5.13 × 3.63 mm
L/W Ratio1.35
Culet sizeNone
Top View
6.91 mm5.13 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2186430328
Side View
Table 64.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$21,898 HKD|Low: HK$16,380 HKD|High: HK$38,505 HKD|Avg: HK$23,252 HKD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8HK$16,380 HKD
Retailer 9HK$17,634 HKD
Retailer 2HK$18,089 HKD
Retailer 11HK$19,115 HKD
Retailer 3HK$19,672 HKD
Retailer 4HK$20,072 HKD
Retailer 1HK$21,898 HKD
Retailer 6HK$25,260 HKD
Retailer 5HK$25,699 HKD
Retailer 10HK$29,790 HKD
Retailer 7HK$36,154 HKD

36 data points across 11 retailers

14 retailersHK$16,380 HKD to HK$36,154 HKD

B+
Cheapest Retailer
-
HK$16,380 HKD
B+
Retailer 2
-
HK$17,634 HKD
View
B+
Retailer 3
-
HK$18,089 HKD
View
B
Retailer 4
-
HK$19,115 HKD
View
Retailer 5
-
HK$19,672 HKD
View
Price last confirmed 40 days ago
Retailer 6
-
HK$19,672 HKD
View
Price last confirmed 9 days ago
B
Retailer 7
-
HK$20,072 HKD
View
B
Retailer 8
-
HK$21,898 HKD
View
Retailer 9
-
HK$22,705 HKD
View
Price last confirmed 39 days ago
B
Retailer 10
-
HK$25,260 HKD
View
B
Retailer 11
-
HK$25,699 HKD
View
B
Retailer 12
-
HK$29,790 HKD
View
B
Retailer 13
-
HK$36,154 HKD
View
Most Expensive
NZ Jewellers
0ab44f12-889a-4982-abb7-ee81256cb966 · Sep 28
HK$45,402 HKD
$5,793 USD
View
Price last confirmed 39 days ago
13 more retailers have this diamond
Prices start from HK$16,380 HKDSave up to HK$19,774 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.

B+
1.20ct Radiant
HK$16,380 HKD