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Oval|Natural|IGI

0.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 815673855

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815673855

Diamond specifications and retailer prices

From HK$2,531 HKD
As of November 6, 2026
Save HK$10,573 HKD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$13,104 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673855. Listed at 14 retailers as of November 5, 2026, with prices from HK$2,531 to HK$13,104, a HK$10,573 spread on the same certified stone. NZ Jewellers lists it at HK$13,104. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.7°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 815673855
Dimensions6.30 × 4.62 × 2.77 mm
L/W Ratio1.36
Girdle conditionFaceted
Top View
6.30 mm4.62 mm0.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 815673855
Side View
Table 60.0%Crown 30.7°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 60.0%

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$13,104 HKD|Low: HK$2,531 HKD|High: HK$13,104 HKD|Avg: HK$4,892 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 2HK$2,531 HKD
Retailer 13HK$3,417 HKD
Retailer 11HK$3,684 HKD
Retailer 12HK$3,684 HKD
Retailer 4HK$3,919 HKD
Retailer 3HK$3,942 HKD
Retailer 6HK$4,169 HKD
Retailer 8HK$4,365 HKD
Retailer 5HK$4,742 HKD
Retailer 9HK$5,298 HKD
Retailer 7HK$5,580 HKD
Retailer 10HK$7,877 HKD
NZ JewellersHK$13,104 HKD

26 data points across 13 retailers

14 retailersHK$2,531 HKD to HK$13,104 HKD

A
Cheapest Retailer
-
HK$2,531 HKD
B+
Retailer 2
-
HK$3,417 HKD
View
B+
Retailer 3
-
HK$3,684 HKD
View
Retailer 4
-
HK$3,684 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$3,919 HKD
View
B+
Retailer 6
-
HK$3,942 HKD
View
B+
Retailer 7
-
HK$4,169 HKD
View
B+
Retailer 8
-
HK$4,365 HKD
View
B+
Retailer 9
-
HK$4,444 HKD
View
B
Retailer 10
-
HK$4,742 HKD
View
B
Retailer 11
-
HK$5,298 HKD
View
B
Retailer 12
-
HK$5,580 HKD
View
B
Retailer 13
-
HK$7,877 HKD
View
Most Expensive
C
NZ Jewellers
f006e734-a583-408a-b002-81a75b2f699f · Nov 5
HK$13,104 HKD
$1,672 USD
View
13 more retailers have this diamond
Prices start from HK$2,531 HKDSave up to HK$10,573 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 Oval
HK$2,531 HKD