CaratHunter
Plans
Radiant|Natural|GIA

0.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6562792009

Certificate GIA 6562792009

Diamond specifications and retailer prices

From $721 AUD
$505 USD
As of November 2, 2026
Save $2,467 AUD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,188 AUD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562792009. Listed at 16 retailers as of November 2, 2026, with prices from $721 to $3,188, a $2,467 spread on the same certified stone. NZ Jewellers lists it at $3,188. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562792009
Dimensions5.59 × 3.98 × 2.64 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud
Top View
5.59 mm3.98 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562792009
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $3,188 AUD|Low: $721 AUD|High: $3,188 AUD|Avg: $1,255 AUD
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
Retailer 15
November 3, 2026
Retailer 3$721 AUD
Retailer 12$765 AUD
Retailer 7$1,032 AUD
Retailer 10$1,072 AUD
Retailer 4$1,190 AUD
Retailer 11$1,190 AUD
Retailer 6$1,220 AUD
Retailer 8$1,227 AUD
Retailer 13$1,266 AUD
Retailer 2$1,284 AUD
Retailer 15$1,292 AUD
Retailer 14$1,378 AUD
Retailer 5$1,413 AUD
Retailer 9$1,888 AUD
NZ Jewellers$3,188 AUD

3 data points across 15 retailers

16 retailers$721 AUD to $3,188 AUD

A
Cheapest Retailer
-
$721 AUD
$505 USD
Final sale: no returns
A
Retailer 2
-
$765 AUD
₹51,073 INR
View
A
Retailer 3
-
$972 AUD
View
B+
Retailer 4
-
$1,032 AUD
$723 USD
View
B+
Retailer 5
-
$1,072 AUD
$751 USD
View
B+
Retailer 6
-
$1,190 AUD
$834 USD
View
B+
Retailer 7
-
$1,190 AUD
$834 USD
View
B+
Retailer 8
-
$1,220 AUD
$855 USD
View
B+
Retailer 9
-
$1,227 AUD
£677 GBP
View
B+
Retailer 10
-
$1,266 AUD
£699 GBP
View
B+
Retailer 11
-
$1,284 AUD
$900 USD
View
B+
Retailer 12
-
$1,292 AUD
£713 GBP
View
B+
Retailer 13
-
$1,378 AUD
€920 EUR
View
B+
Retailer 14
-
$1,413 AUD
$990 USD
View
B
Retailer 15
-
$1,888 AUD
£1,042 GBP
View
Most Expensive
B
NZ Jewellers
ac43799b-b53f-4c3b-89b1-f5bb1ac9729b · Nov 3
$3,188 AUD
$2,234 USD
View
15 more retailers have this diamond
Prices start from $721 AUDSave up to $2,467 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.

A
0.51ct Radiant
$721 AUD