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Radiant|Natural|GIA

0.51ct J SI2 Radiant Natural Diamond

GD • J/SI2 • GIA 6565436784

Certificate GIA 6565436784

Diamond specifications and retailer prices

From £287 GBP
$385 USD
As of November 2, 2026
Save £908 GBP (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,195 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6565436784. Listed at 10 retailers as of October 30, 2026, with prices from £287 to £1,195, a £908 spread on the same certified stone. NZ Jewellers lists it at £1,195. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565436784
Dimensions5.22 × 3.96 × 2.76 mm
L/W Ratio1.32
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather
Top View
5.22 mm3.96 mm0.51 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565436784
Side View
Table 69.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 69.7%

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: Nov 2
Current: £1,195 GBP|Low: £287 GBP|High: £1,195 GBP|Avg: £484 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10£287 GBP
Retailer 8£312 GBP
Retailer 6£336 GBP
Retailer 9£336 GBP
Retailer 7£360 GBP
Retailer 2£372 GBP
Retailer 3£383 GBP
Retailer 5£476 GBP
Retailer 4£719 GBP
NZ Jewellers£1,195 GBP

12 data points across 10 retailers

10 retailers£287 GBP to £1,195 GBP

B+
Cheapest Retailer
-
£287 GBP
$385 USD
Final sale: no returns
B+
Retailer 2
-
£312 GBP
$418 USD
View
B+
Retailer 3
-
£336 GBP
$450 USD
View
B+
Retailer 4
-
£336 GBP
$450 USD
View
B+
Retailer 5
-
£360 GBP
$482 USD
View
B+
Retailer 6
-
£372 GBP
View
B+
Retailer 7
-
£383 GBP
View
B
Retailer 8
-
£476 GBP
€607 EUR
View
B
Retailer 9
-
£719 GBP
View
Most Expensive
C
NZ Jewellers
40052304-4521-42b5-808d-a227a1774fb3 · Oct 30
£1,195 GBP
$1,601 USD
View
9 more retailers have this diamond
Prices start from £287 GBPSave up to £908 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 Radiant
£287 GBP