Round|Natural|GIA

0.51ct E I1 Round Natural Diamond

EX • E/I1 • GIA 6522378676

Certificate GIA 6522378676

Diamond specifications and retailer prices

From HK$4,720 HKD
As of October 30, 2026
Save HK$1,574 HKD (25%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$13,196 HKD at NZ Jewellers · As of September 24, 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 6522378676. Listed at 7 retailers as of October 29, 2026, with a 33% 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
E
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6522378676
Dimensions5.14 × 5.12 × 3.17 mm
L/W Ratio1.00
Top View
5.14 mm5.12 mm0.51 ctE / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6522378676
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$6,294 HKD|Low: HK$4,624 HKD|High: HK$6,406 HKD|Avg: HK$5,444 HKD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 2HK$4,688 HKD
Retailer 3HK$4,720 HKD
Retailer 4HK$5,249 HKD
Retailer 1HK$6,294 HKD
Retailer 5HK$6,406 HKD

21 data points across 5 retailers

7 retailersHK$4,720 HKD to HK$6,294 HKD

Retailer 1
-
HK$4,205 HKD
$536 USD
Price last confirmed 23 days ago
Retailer 2
-
HK$4,535 HKD
$578 USD
View
Price last confirmed 23 days ago
Retailer 3
-
HK$4,535 HKD
$578 USD
View
Price last confirmed 31 days ago
B+
Retailer 4
-
HK$4,720 HKD
View
Retailer 5
-
HK$4,856 HKD
$619 USD
View
Price last confirmed 21 days ago
B
Retailer 6
-
HK$6,294 HKD
€764 EUR
View
Most Expensive
NZ Jewellers
cf73cbc8-8891-427b-9248-e48a1677b1fe · Sep 24
HK$13,196 HKD
$1,682 USD
View
Price last confirmed 36 days ago
6 more retailers have this diamond
Prices start from HK$4,720 HKDSave up to HK$1,574 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.

B+
0.51ct Round
HK$4,720 HKD