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Round|Natural|GIA

0.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5293326024

Certificate GIA 5293326024

Diamond specifications and retailer prices

From HK$4,260 HKD
As of November 4, 2026
Save HK$4,864 HKD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$15,157 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 5293326024. Listed at 10 retailers as of November 2, 2026, with a 114% 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5293326024
Dimensions5.13 × 5.11 × 3.17 mm
L/W Ratio1.00
Top View
5.13 mm5.11 mm0.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5293326024
Side View
Table 56.0%CrownGirdle: Sli. ThickPavilionCulet: 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 4
Current: HK$15,157 HKD|Low: HK$3,577 HKD|High: HK$15,157 HKD|Avg: HK$6,057 HKD|+1.7%
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 3HK$3,577 HKD
Retailer 8HK$4,260 HKD
Retailer 9HK$4,260 HKD
Retailer 11HK$4,519 HKD
Retailer 7HK$4,558 HKD
Retailer 2HK$4,691 HKD
Retailer 4HK$4,872 HKD
Retailer 10HK$4,982 HKD
Retailer 5HK$5,907 HKD
Retailer 6HK$9,124 HKD
NZ JewellersHK$15,157 HKD

33 data points across 11 retailers

10 retailersHK$4,260 HKD to HK$9,124 HKD

A
Cheapest Retailer
-
HK$4,260 HKD
Retailer 2
-
HK$4,260 HKD
View
Price last confirmed 8 days ago
A
Retailer 3
-
HK$4,519 HKD
View
Retailer 4
-
HK$4,558 HKD
View
Price last confirmed 10 days ago
A
Retailer 5
-
HK$4,691 HKD
View
A
Retailer 6
-
HK$4,872 HKD
View
A
Retailer 7
-
HK$4,982 HKD
View
B+
Retailer 8
-
HK$5,907 HKD
View
B
Retailer 9
-
HK$9,124 HKD
View
Most Expensive
NZ Jewellers
f58859dc-206d-428f-ac7e-8eb1f0cd5ad1 · Oct 27
HK$15,157 HKD
$1,932 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from HK$4,260 HKDSave up to HK$4,864 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$4,260 HKD