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Round|Natural|GIA

0.51ct E SI2 Round Natural Diamond

VG • E/SI2 • GIA 5566193135

Certificate GIA 5566193135

Diamond specifications and retailer prices

From HK$3,554 HKD
As of November 5, 2026
Save HK$7,116 HKD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$15,220 HKD at NZ Jewellers · As of October 11, 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 5566193135. Listed at 15 retailers as of November 4, 2026, with a 200% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 5566193135
Dimensions4.95 × 5.00 × 3.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
4.95 mm5.00 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566193135
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.1%

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 5
Current: HK$3,554 HKD|Low: HK$3,028 HKD|High: HK$11,109 HKD|Avg: HK$5,519 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 1HK$3,554 HKD
Retailer 2HK$4,017 HKD
Retailer 9HK$4,134 HKD
Retailer 6HK$4,268 HKD
Retailer 8HK$4,652 HKD
Retailer 3HK$5,594 HKD
Retailer 7HK$5,633 HKD
Retailer 10HK$6,135 HKD
Retailer 5HK$6,441 HKD
Retailer 4HK$10,669 HKD

37 data points across 10 retailers

15 retailersHK$3,554 HKD to HK$10,669 HKD

A
Cheapest Retailer
-
HK$3,554 HKD
A
Retailer 2
-
HK$4,017 HKD
View
A
Retailer 3
-
HK$4,134 HKD
View
A
Retailer 4
-
HK$4,268 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$4,652 HKD
View
Retailer 6
-
HK$4,856 HKD
View
Price last confirmed 26 days ago
Retailer 7
-
HK$5,225 HKD
View
Price last confirmed 26 days ago
Retailer 8
-
HK$5,225 HKD
View
Price last confirmed 38 days ago
A
Retailer 9
-
HK$5,594 HKD
View
Retailer 10
-
HK$5,601 HKD
View
Price last confirmed 26 days ago
A
Retailer 11
-
HK$5,633 HKD
View
A
Retailer 12
-
HK$6,135 HKD
View
B+
Retailer 13
-
HK$6,441 HKD
View
B
Retailer 14
-
HK$10,669 HKD
View
Most Expensive
NZ Jewellers
b04396ad-a881-4a45-af99-aece8d5587d5 · Oct 11
HK$15,220 HKD
$1,940 USD
View
Price last confirmed 26 days ago
14 more retailers have this diamond
Prices start from HK$3,554 HKDSave up to HK$7,116 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$3,554 HKD