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Oval|Natural|IGI

0.51ct H SI1 Oval Natural Diamond

VG • H/SI1 • IGI 815674622

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815674622

Diamond specifications and retailer prices

From HK$4,483 HKD
As of November 6, 2026
Save HK$6,740 HKD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$15,267 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815674622. Listed at 13 retailers as of November 4, 2026, with a 150% 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.1°
Pavilion angle38.6°
OriginNatural
Grading LabIGI
CertificateIGI 815674622
Dimensions6.45 × 4.48 × 2.65 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizeNone
Top View
6.45 mm4.48 mm0.51 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815674622
Side View
Table 59.0%Crown 31.1°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 59.2%

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 6
Current: HK$15,267 HKD|Low: HK$4,483 HKD|High: HK$15,267 HKD|Avg: HK$7,429 HKD
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
November 6, 2026
Retailer 12HK$4,483 HKD
Retailer 3HK$4,867 HKD
Retailer 10HK$5,243 HKD
Retailer 11HK$5,525 HKD
Retailer 5HK$5,619 HKD
Retailer 4HK$5,894 HKD
Retailer 2HK$5,941 HKD
Retailer 6HK$6,105 HKD
Retailer 9HK$6,529 HKD
Retailer 7HK$7,508 HKD
Retailer 13HK$10,447 HKD
Retailer 8HK$11,223 HKD
NZ JewellersHK$15,267 HKD

42 data points across 13 retailers

13 retailersHK$4,483 HKD to HK$11,223 HKD

B+
Cheapest Retailer
-
HK$4,483 HKD
Final sale: no returns
B+
Retailer 2
-
HK$4,867 HKD
View
B+
Retailer 3
-
HK$5,243 HKD
View
B+
Retailer 4
-
HK$5,525 HKD
View
B
Retailer 5
-
HK$5,619 HKD
View
B
Retailer 6
-
HK$5,894 HKD
View
B
Retailer 7
-
HK$5,941 HKD
View
B
Retailer 8
-
HK$6,105 HKD
View
B
Retailer 9
-
HK$6,529 HKD
View
B
Retailer 10
-
HK$7,508 HKD
View
C
Retailer 11
-
HK$10,447 HKD
View
B
Retailer 12
-
HK$11,223 HKD
View
Most Expensive
NZ Jewellers
45561710-6261-4c8f-814a-6e41483f6e9d · Nov 5
HK$15,267 HKD
$1,948 USD
View
Price under review
12 more retailers have this diamond
Prices start from HK$4,483 HKDSave up to HK$6,740 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 Oval
HK$4,483 HKD