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0.51ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 638418320

Shape and cutting style on the report: Round brilliant

Certificate IGI 638418320

Diamond specifications and retailer prices

From HK$2,126 HKD
As of November 5, 2026
Save HK$7,484 HKD (78%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$9,610 HKD at NZ Jewellers · As of November 4, 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 638418320. Listed at 9 retailers as of November 4, 2026, with prices from HK$2,126 to HK$9,610, a HK$7,484 spread on the same certified stone. NZ Jewellers lists it at HK$9,610. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36.2°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 638418320
Dimensions5.07 × 5.10 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
5.07 mm5.10 mm0.51 ctL / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateIGI 638418320
Side View
Table 63.0%Crown 36.2°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$9,610 HKD|Low: HK$2,126 HKD|High: HK$9,610 HKD|Avg: HK$3,488 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7HK$2,126 HKD
Retailer 5HK$2,228 HKD
Retailer 9HK$2,283 HKD
Retailer 4HK$2,369 HKD
Retailer 8HK$2,856 HKD
Retailer 6HK$2,887 HKD
Retailer 11HK$3,138 HKD
Retailer 3HK$3,185 HKD
Retailer 2HK$3,632 HKD
Retailer 10HK$3,719 HKD
NZ JewellersHK$9,610 HKD

15 data points across 11 retailers

9 retailersHK$2,126 HKD to HK$9,610 HKD

A
Cheapest Retailer
-
HK$2,126 HKD
Retailer 2
-
HK$2,283 HKD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
HK$2,369 HKD
View
Retailer 4
-
HK$2,809 HKD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
HK$2,856 HKD
View
B+
Retailer 6
-
HK$2,887 HKD
View
B+
Retailer 7
-
HK$3,138 HKD
View
B+
Retailer 8
-
HK$3,632 HKD
View
Most Expensive
C
NZ Jewellers
8a4e0068-c8d5-44ca-8bd6-925b1c914e4b · Nov 4
HK$9,610 HKD
$1,225 USD
View
8 more retailers have this diamond
Prices start from HK$2,126 HKDSave up to HK$7,484 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$2,126 HKD