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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 $549 AUD
$385 USD
As of November 2, 2026
Save $1,735 AUD (76%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,284 AUD 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 $549 to $2,284, a $1,735 spread on the same certified stone. NZ Jewellers lists it at $2,284. 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: $2,284 AUD|Low: $549 AUD|High: $2,284 AUD|Avg: $925 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$549 AUD
Retailer 8$596 AUD
Retailer 6$642 AUD
Retailer 9$642 AUD
Retailer 7$688 AUD
Retailer 2$712 AUD
Retailer 3$738 AUD
Retailer 5$909 AUD
Retailer 4$1,375 AUD
NZ Jewellers$2,284 AUD

13 data points across 10 retailers

10 retailers$549 AUD to $2,284 AUD

B+
Cheapest Retailer
-
$549 AUD
$385 USD
Final sale: no returns
B+
Retailer 2
-
$596 AUD
$418 USD
View
B+
Retailer 3
-
$642 AUD
$450 USD
View
B+
Retailer 4
-
$642 AUD
$450 USD
View
B+
Retailer 5
-
$688 AUD
$482 USD
View
B+
Retailer 6
-
$712 AUD
£393 GBP
View
B+
Retailer 7
-
$738 AUD
£407 GBP
View
B
Retailer 8
-
$909 AUD
€607 EUR
View
B
Retailer 9
-
$1,375 AUD
£759 GBP
View
Most Expensive
C
NZ Jewellers
40052304-4521-42b5-808d-a227a1774fb3 · Oct 30
$2,284 AUD
$1,601 USD
View
9 more retailers have this diamond
Prices start from $549 AUDSave up to $1,735 AUD

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
$549 AUD