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Round|Natural|GIA

0.51ct E I1 Round Natural Diamond

EX • E/I1 • GIA 6522378676

Certificate GIA 6522378676

Diamond specifications and retailer prices

From $856 AUD
HK$4,700 HKD
As of October 30, 2026
Save $286 AUD (25%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,394 AUD 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: $1,142 AUD|Low: $838 AUD|High: $1,162 AUD|Avg: $987 AUD|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 2$850 AUD
Retailer 3$856 AUD
Retailer 4$952 AUD
Retailer 1$1,142 AUD
Retailer 5$1,162 AUD

22 data points across 5 retailers

7 retailers$856 AUD to $1,142 AUD

Retailer 1
-
$763 AUD
$536 USD
Price last confirmed 22 days ago
Retailer 2
-
$823 AUD
$578 USD
View
Price last confirmed 22 days ago
Retailer 3
-
$823 AUD
$578 USD
View
Price last confirmed 31 days ago
B+
Retailer 4
-
$856 AUD
HK$4,700 HKD
View
Retailer 5
-
$881 AUD
$619 USD
View
Price last confirmed 21 days ago
B
Retailer 6
-
$1,142 AUD
€764 EUR
View
Most Expensive
NZ Jewellers
cf73cbc8-8891-427b-9248-e48a1677b1fe · Sep 24
$2,394 AUD
$1,682 USD
View
Price last confirmed 36 days ago
6 more retailers have this diamond
Prices start from $856 AUDSave up to $286 AUD

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
$856 AUD