Round|Natural|GIA

0.51ct E I1 Round Natural Diamond

EX • E/I1 • GIA 6522378676

Certificate GIA 6522378676

Diamond specifications and retailer prices

From €538 EUR
HK$4,700 HKD
As of October 30, 2026
Save €180 EUR (25%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,506 EUR 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: €718 EUR|Low: €528 EUR|High: €731 EUR|Avg: €621 EUR|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 2€535 EUR
Retailer 3€538 EUR
Retailer 4€599 EUR
Retailer 1€718 EUR
Retailer 5€731 EUR

21 data points across 5 retailers

7 retailers€538 EUR to €718 EUR

Retailer 1
-
€480 EUR
$536 USD
Price last confirmed 23 days ago
Retailer 2
-
€517 EUR
$578 USD
View
Price last confirmed 23 days ago
Retailer 3
-
€517 EUR
$578 USD
View
Price last confirmed 31 days ago
B+
Retailer 4
-
€538 EUR
HK$4,700 HKD
View
Retailer 5
-
€554 EUR
$619 USD
View
Price last confirmed 21 days ago
B
Retailer 6
-
€718 EUR
View
Most Expensive
NZ Jewellers
cf73cbc8-8891-427b-9248-e48a1677b1fe · Sep 24
€1,506 EUR
$1,682 USD
View
Price last confirmed 37 days ago
6 more retailers have this diamond
Prices start from €538 EURSave up to €180 EUR

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
€538 EUR