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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 €345 EUR
$385 USD
As of October 31, 2026
Save €1,088 EUR (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,433 EUR 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 €345 to €1,433, a €1,088 spread on the same certified stone. NZ Jewellers lists it at €1,433. 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
Color
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: Oct 31
Current: €1,433 EUR|Low: €345 EUR|High: €1,433 EUR|Avg: €581 EUR
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€345 EUR
Retailer 8€374 EUR
Retailer 6€403 EUR
Retailer 9€403 EUR
Retailer 7€431 EUR
Retailer 2€447 EUR
Retailer 3€459 EUR
Retailer 5€570 EUR
Retailer 4€863 EUR
NZ Jewellers€1,433 EUR

12 data points across 10 retailers

10 retailers€345 EUR to €1,433 EUR

B+
Cheapest Retailer
-
€345 EUR
$385 USD
Final sale: no returns
B+
Retailer 2
-
€374 EUR
$418 USD
View
B+
Retailer 3
-
€403 EUR
$450 USD
View
B+
Retailer 4
-
€403 EUR
$450 USD
View
B+
Retailer 5
-
€431 EUR
$482 USD
View
B+
Retailer 6
-
€447 EUR
£393 GBP
View
B+
Retailer 7
-
€459 EUR
£404 GBP
View
B
Retailer 8
-
€570 EUR
View
B
Retailer 9
-
€863 EUR
£759 GBP
View
Most Expensive
C
NZ Jewellers
40052304-4521-42b5-808d-a227a1774fb3 · Oct 30
€1,433 EUR
$1,601 USD
View
9 more retailers have this diamond
Prices start from €345 EURSave up to €1,088 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 Radiant
€345 EUR