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Radiant|Natural|IGI

0.51ct G IF Radiant Natural Diamond

EX • G/IF • IGI 815625591

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 815625591

Diamond specifications and retailer prices

From HK$3,887 HKD
₹47,181 INR
As of November 2, 2026
Save HK$12,535 HKD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$16,422 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 815625591. Listed at 10 retailers as of October 30, 2026, with prices from HK$3,887 to HK$16,422, a HK$12,535 spread on the same certified stone. NZ Jewellers lists it at HK$16,422. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle37.6°
OriginNatural
Grading LabIGI
CertificateIGI 815625591
Dimensions5.61 × 3.95 × 2.65 mm
L/W Ratio1.42
Top View
5.61 mm3.95 mm0.51 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815625591
Side View
Table 64.0%Crown 47.1°Girdle: Slightly ThickPavilion 37.6°Culet: NoneDepth 67.1%

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 2
Current: HK$16,422 HKD|Low: HK$3,887 HKD|High: HK$17,104 HKD|Avg: HK$7,445 HKD|-4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3HK$3,887 HKD
Retailer 8HK$5,017 HKD
Retailer 6HK$5,233 HKD
Retailer 9HK$5,335 HKD
Retailer 2HK$5,437 HKD
Retailer 4HK$5,906 HKD
Retailer 10HK$6,081 HKD
Retailer 5HK$7,019 HKD
Retailer 7HK$12,097 HKD
NZ JewellersHK$16,422 HKD

24 data points across 10 retailers

10 retailersHK$3,887 HKD to HK$16,422 HKD

A
Cheapest Retailer
-
HK$3,887 HKD
₹47,181 INR
A
Retailer 2
-
HK$5,017 HKD
€609 EUR
View
A
Retailer 3
-
HK$5,233 HKD
$667 USD
View
A
Retailer 4
-
HK$5,335 HKD
$680 USD
View
A
Retailer 5
-
HK$5,437 HKD
$693 USD
View
A
Retailer 6
-
HK$5,906 HKD
£593 GBP
View
A
Retailer 7
-
HK$6,081 HKD
$775 USD
View
A
Retailer 8
-
HK$7,019 HKD
€852 EUR
View
B
Retailer 9
-
HK$12,097 HKD
£1,214 GBP
View
Most Expensive
B
NZ Jewellers
5bf6edc4-74f0-4cb3-8d27-e8d8bb1b0a11 · Oct 30
HK$16,422 HKD
$2,093 USD
View
9 more retailers have this diamond
Prices start from HK$3,887 HKDSave up to HK$12,535 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
0.51ct Radiant
HK$3,887 HKD