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Round|Natural|IGI

0.51ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 508117087

Shape and cutting style on the report: Round brilliant

Certificate IGI 508117087

Diamond specifications and retailer prices

From HK$2,612 HKD
As of November 6, 2026
Save HK$11,132 HKD (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$13,745 HKD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 508117087. Listed at 21 retailers as of November 4, 2026, with a 426% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.6°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 508117087
Dimensions5.14 × 5.11 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.14 mm5.11 mm0.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 508117087
Side View
Table 57.5%Crown 34.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.0%

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$13,745 HKD|Low: HK$2,612 HKD|High: HK$13,745 HKD|Avg: HK$6,606 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2HK$2,612 HKD
Retailer 10HK$3,860 HKD
Retailer 6HK$4,566 HKD
Retailer 5HK$4,582 HKD
Retailer 11HK$4,778 HKD
Retailer 4HK$5,115 HKD
Retailer 8HK$5,217 HKD
Retailer 7HK$5,554 HKD
Retailer 9HK$8,269 HKD
Retailer 3HK$10,552 HKD
NZ JewellersHK$13,745 HKD

38 data points across 11 retailers

21 retailersHK$2,612 HKD to HK$13,745 HKD

A
Cheapest Retailer
-
HK$2,612 HKD
Retailer 2
-
HK$3,585 HKD
View
Price last confirmed 44 days ago
Retailer 3
-
HK$3,585 HKD
View
Price last confirmed 17 days ago
Retailer 4
-
HK$3,726 HKD
View
Price last confirmed 30 days ago
Retailer 5
-
HK$3,860 HKD
View
Price last confirmed 8 days ago
Retailer 6
-
HK$4,134 HKD
View
Price last confirmed 45 days ago
A
Retailer 7
-
HK$4,134 HKD
View
A
Retailer 8
-
HK$4,134 HKD
View
B+
Retailer 9
-
HK$4,566 HKD
View
B+
Retailer 10
-
HK$4,582 HKD
View
B+
Retailer 11
-
HK$4,613 HKD
View
B+
Retailer 12
-
HK$4,778 HKD
View
B+
Retailer 13
-
HK$5,115 HKD
View
B+
Retailer 14
-
HK$5,217 HKD
View
B+
Retailer 15
-
HK$5,554 HKD
View
B
Retailer 16
-
HK$8,269 HKD
View
Retailer 17
-
HK$10,552 HKD
View
Price last confirmed 16 days ago
Retailer 18
-
HK$11,383 HKD
View
Price last confirmed 15 days ago
B
Retailer 19
-
HK$13,745 HKD
View
Retailer 20
-
HK$13,745 HKD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
c9809af7-3e34-415e-ba69-30e5413ca627 · Oct 20
HK$13,745 HKD
$1,752 USD
View
Price last confirmed 17 days ago
20 more retailers have this diamond
Prices start from HK$2,612 HKDSave up to HK$11,132 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 Round
HK$2,612 HKD