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Radiant|Natural|IGI

0.51ct G SI1 Radiant Natural Diamond

VG • G/SI1 • IGI 763646284

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

Certificate IGI 763646284

Diamond specifications and retailer prices

From HK$2,320 HKD
As of November 6, 2026
Save HK$9,577 HKD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$11,897 HKD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 763646284. Listed at 13 retailers as of November 5, 2026, with prices from HK$2,320 to HK$11,897, a HK$9,577 spread on the same certified stone. NZ Jewellers lists it at HK$11,897. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Crown angle39.5°
Pavilion angle33.8°
OriginNatural
Grading LabIGI
CertificateIGI 763646284
Dimensions5.28 × 4.07 × 2.69 mm
L/W Ratio1.30
Culet sizePointed
Top View
5.28 mm4.07 mm0.51 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateIGI 763646284
Side View
Table 72.0%Crown 39.5°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 66.1%

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 6
Current: HK$11,897 HKD|Low: HK$2,320 HKD|High: HK$14,656 HKD|Avg: HK$6,008 HKD|-18.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 10HK$2,320 HKD
Retailer 16HK$3,104 HKD
Retailer 3HK$3,347 HKD
Retailer 9HK$3,347 HKD
Retailer 4HK$3,582 HKD
Retailer 11HK$3,785 HKD
Retailer 5HK$3,832 HKD
Retailer 14HK$3,887 HKD
Retailer 2HK$4,162 HKD
Retailer 8HK$4,232 HKD
Retailer 15HK$4,781 HKD
Retailer 13HK$4,812 HKD
Retailer 12HK$5,604 HKD
Retailer 7HK$8,394 HKD
Retailer 6HK$8,935 HKD
NZ JewellersHK$11,897 HKD

26 data points across 16 retailers

13 retailersHK$2,320 HKD to HK$11,897 HKD

A
Cheapest Retailer
-
HK$2,320 HKD
B+
Retailer 2
-
HK$3,104 HKD
View
B+
Retailer 3
-
HK$3,347 HKD
View
B+
Retailer 4
-
HK$3,347 HKD
View
B+
Retailer 5
-
HK$3,582 HKD
View
A
Retailer 6
-
HK$3,785 HKD
View
Retailer 7
-
HK$3,832 HKD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
HK$3,887 HKD
View
B+
Retailer 9
-
HK$4,162 HKD
View
B+
Retailer 10
-
HK$4,781 HKD
View
B+
Retailer 11
-
HK$4,812 HKD
View
B+
Retailer 12
-
HK$5,604 HKD
View
Most Expensive
C
NZ Jewellers
bb5d70b2-dff2-4582-96c6-01a1bd36627f · Nov 5
HK$11,897 HKD
$1,518 USD
View
12 more retailers have this diamond
Prices start from HK$2,320 HKDSave up to HK$9,577 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$2,320 HKD