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Round|Natural|GIA

0.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 7388356202

Certificate GIA 7388356202

Diamond specifications and retailer prices

From HK$3,530 HKD
As of November 4, 2026
Save HK$5,280 HKD (60%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$14,655 HKD at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7388356202. Listed at 10 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. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7388356202
Dimensions5.11 × 5.10 × 3.16 mm
L/W Ratio1.00
Top View
5.11 mm5.10 mm0.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7388356202
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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 4
Current: HK$14,655 HKD|Low: HK$2,942 HKD|High: HK$14,655 HKD|Avg: HK$6,174 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7HK$3,530 HKD
Retailer 4HK$3,883 HKD
Retailer 8HK$4,119 HKD
Retailer 9HK$4,229 HKD
Retailer 6HK$4,409 HKD
Retailer 2HK$4,676 HKD
Retailer 3HK$5,703 HKD
Retailer 5HK$8,810 HKD
NZ JewellersHK$14,655 HKD

44 data points across 9 retailers

10 retailersHK$3,530 HKD to HK$8,810 HKD

A
Cheapest Retailer
-
HK$3,530 HKD
Final sale: no returns
A
Retailer 2
-
HK$3,883 HKD
View
Retailer 3
-
HK$4,119 HKD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$4,119 HKD
View
A
Retailer 5
-
HK$4,409 HKD
View
Retailer 6
-
HK$4,409 HKD
View
Price last confirmed 10 days ago
A
Retailer 7
-
HK$4,676 HKD
View
B+
Retailer 8
-
HK$5,703 HKD
View
B
Retailer 9
-
HK$8,810 HKD
View
Most Expensive
NZ Jewellers
b5cc16ca-40b4-43ec-8b14-3fefe3aec87c · Oct 27
HK$14,655 HKD
$1,868 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from HK$3,530 HKDSave up to HK$5,280 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$3,530 HKD