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Radiant|Natural|GIA

0.51ct J SI2 Radiant Natural Diamond

GD • J/SI2 • GIA 6565436784

Certificate GIA 6565436784

Diamond specifications and retailer prices

From HK$3,021 HKD
$385 USD
As of November 2, 2026
Save HK$9,540 HKD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$12,561 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6565436784. Listed at 10 retailers as of October 30, 2026, with prices from HK$3,021 to HK$12,561, a HK$9,540 spread on the same certified stone. NZ Jewellers lists it at HK$12,561. 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

0.51
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565436784
Dimensions5.22 × 3.96 × 2.76 mm
L/W Ratio1.32
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather
Top View
5.22 mm3.96 mm0.51 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565436784
Side View
Table 69.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 69.7%

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 2
Current: HK$12,561 HKD|Low: HK$3,021 HKD|High: HK$12,561 HKD|Avg: HK$5,084 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10HK$3,021 HKD
Retailer 8HK$3,280 HKD
Retailer 6HK$3,531 HKD
Retailer 9HK$3,531 HKD
Retailer 7HK$3,782 HKD
Retailer 2HK$3,914 HKD
Retailer 3HK$4,058 HKD
Retailer 5HK$5,000 HKD
Retailer 4HK$7,563 HKD
NZ JewellersHK$12,561 HKD

13 data points across 10 retailers

10 retailersHK$3,021 HKD to HK$12,561 HKD

B+
Cheapest Retailer
-
HK$3,021 HKD
$385 USD
Final sale: no returns
B+
Retailer 2
-
HK$3,280 HKD
$418 USD
View
B+
Retailer 3
-
HK$3,531 HKD
$450 USD
View
B+
Retailer 4
-
HK$3,531 HKD
$450 USD
View
B+
Retailer 5
-
HK$3,782 HKD
$482 USD
View
B+
Retailer 6
-
HK$3,914 HKD
£393 GBP
View
B+
Retailer 7
-
HK$4,058 HKD
£407 GBP
View
B
Retailer 8
-
HK$5,000 HKD
€607 EUR
View
B
Retailer 9
-
HK$7,563 HKD
£759 GBP
View
Most Expensive
C
NZ Jewellers
40052304-4521-42b5-808d-a227a1774fb3 · Oct 30
HK$12,561 HKD
$1,601 USD
View
9 more retailers have this diamond
Prices start from HK$3,021 HKDSave up to HK$9,540 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+
0.51ct Radiant
HK$3,021 HKD