Round|Natural|GIA

0.51ct E I1 Round Natural Diamond

EX • E/I1 • GIA 6552701775

Certificate GIA 6552701775

Diamond specifications and retailer prices

From £476 GBP
$634 USD
As of October 29, 2026
Save £160 GBP (25%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,345 GBP at NZ Jewellers · As of September 28, 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 6552701775. Listed at 9 retailers as of October 29, 2026, with a 34% 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
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6552701775
Dimensions5.07 × 5.11 × 3.18 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather
Top View
5.07 mm5.11 mm0.51 ctE / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552701775
Side View
Table 57.0%Crown 35.5°Girdle: STK-STKPavilion 41°Culet: NoneDepth 62.5%

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 29
Current: £636 GBP|Low: £476 GBP|High: £710 GBP|Avg: £557 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 2£476 GBP
Retailer 3£503 GBP
Retailer 4£503 GBP
Retailer 5£518 GBP
Retailer 1£636 GBP
Retailer 6£710 GBP

17 data points across 6 retailers

9 retailers£476 GBP to £636 GBP

Retailer 1
-
£388 GBP
$517 USD
Price last confirmed 22 days ago
Retailer 2
-
£433 GBP
$577 USD
View
Price last confirmed 31 days ago
Retailer 3
-
£448 GBP
$597 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
£476 GBP
$634 USD
View
B+
Retailer 5
-
£503 GBP
$670 USD
View
B+
Retailer 6
-
£503 GBP
$670 USD
View
B+
Retailer 7
-
£518 GBP
$690 USD
View
B+
Retailer 8
-
£636 GBP
€807 EUR
View
Most Expensive
NZ Jewellers
b56206ba-e8a8-4595-b76b-bc1c7bae313d · Sep 28
£1,345 GBP
$1,791 USD
View
Price last confirmed 32 days ago
8 more retailers have this diamond
Prices start from £476 GBPSave up to £160 GBP

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
£476 GBP