Round|Natural|GIA

0.50ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6522437125

Certificate GIA 6522437125

Diamond specifications and retailer prices

From £317 GBP
$425 USD
As of October 30, 2026
Save £394 GBP (55%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,572 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6522437125. Listed at 9 retailers as of October 30, 2026, with a 124% 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

0.50
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6522437125
Dimensions5.17 × 5.15 × 3.11 mm
L/W Ratio1.00
Top View
5.17 mm5.15 mm0.50 ctJ / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522437125
Side View
Table 58.0%Crown 33°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 60.4%

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: £1,572 GBP|Low: £131 GBP|High: £1,572 GBP|Avg: £462 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 3£131 GBP
Retailer 5£153 GBP
Retailer 14£187 GBP
Retailer 4£239 GBP
Retailer 6£295 GBP
Retailer 10£317 GBP
Retailer 12£454 GBP
Retailer 7£489 GBP
Retailer 8£489 GBP
Retailer 13£524 GBP
Retailer 9£555 GBP
Retailer 11£575 GBP
Retailer 2£711 GBP
NZ Jewellers£1,572 GBP

10 data points across 14 retailers

9 retailers£317 GBP to £711 GBP

B+
Cheapest Retailer
-
£317 GBP
$425 USD
B
Retailer 2
-
£454 GBP
$608 USD
View
B
Retailer 3
-
£489 GBP
$655 USD
View
B
Retailer 4
-
£489 GBP
$655 USD
View
B
Retailer 5
-
£524 GBP
$702 USD
View
B
Retailer 6
-
£555 GBP
$744 USD
View
B
Retailer 7
-
£575 GBP
$770 USD
View
B
Retailer 8
-
£711 GBP
€907 EUR
View
Most Expensive
NZ Jewellers
f83ec209-1cb8-485c-b255-0c4d99b20dd6 · Oct 30
£1,572 GBP
$2,106 USD
View
Price under review
8 more retailers have this diamond
Prices start from £317 GBPSave up to £394 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+
0.50ct Round
£317 GBP