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Radiant|Natural|GIA

0.51ct F SI2 Radiant Natural Diamond

VG • F/SI2 • GIA 2175512626

Certificate GIA 2175512626

Diamond specifications and retailer prices

From HK$6,434 HKD
$820 USD
As of November 1, 2026
Save HK$6,749 HKD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$22,565 HKD at NZ Jewellers · As of October 17, 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2175512626. Listed at 10 retailers as of November 1, 2026, with a 105% 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

0.51
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2175512626
Dimensions4.84 × 4.37 × 2.87 mm
L/W Ratio1.11
Top View
4.84 mm4.37 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 2175512626
Side View
Table 78.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.7%

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 1
Current: HK$8,347 HKD|Low: HK$6,434 HKD|High: HK$13,343 HKD|Avg: HK$8,608 HKD|+5.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5HK$6,434 HKD
Retailer 9HK$6,606 HKD
Retailer 4HK$7,273 HKD
Retailer 7HK$7,375 HKD
Retailer 8HK$8,238 HKD
Retailer 1HK$8,347 HKD
Retailer 3HK$9,016 HKD
Retailer 6HK$10,827 HKD
Retailer 2HK$13,183 HKD

36 data points across 9 retailers

10 retailersHK$6,434 HKD to HK$13,183 HKD

B+
Cheapest Retailer
-
HK$6,434 HKD
$820 USD
B
Retailer 2
-
HK$7,273 HKD
$927 USD
View
B
Retailer 3
-
HK$7,375 HKD
$940 USD
View
B
Retailer 4
-
HK$8,003 HKD
$1,020 USD
View
B
Retailer 5
-
HK$8,003 HKD
$1,020 USD
View
B
Retailer 6
-
HK$8,238 HKD
$1,050 USD
View
B
Retailer 7
-
HK$8,347 HKD
£838 GBP
View
B
Retailer 8
-
HK$9,016 HKD
£905 GBP
View
B
Retailer 9
-
HK$13,183 HKD
£1,323 GBP
View
Most Expensive
NZ Jewellers
71d18f50-1a56-43fe-9206-c8821224c414 · Oct 17
HK$22,565 HKD
$2,876 USD
View
Price under review
9 more retailers have this diamond
Prices start from HK$6,434 HKDSave up to HK$6,749 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$6,434 HKD