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 $898 NZD
$505 USD
As of November 2, 2026
Save $3,073 NZD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,970 NZD 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 $898 to $3,970, a $3,073 spread on the same certified stone. NZ Jewellers lists it at $3,970. 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: $3,970 NZD|Low: $898 NZD|High: $3,970 NZD|Avg: $1,563 NZD
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$898 NZD
Retailer 12$953 NZD
Retailer 7$1,285 NZD
Retailer 10$1,335 NZD
Retailer 4$1,482 NZD
Retailer 11$1,482 NZD
Retailer 6$1,520 NZD
Retailer 8$1,528 NZD
Retailer 13$1,577 NZD
Retailer 2$1,600 NZD
Retailer 15$1,610 NZD
Retailer 14$1,717 NZD
Retailer 5$1,759 NZD
Retailer 9$2,352 NZD
NZ Jewellers$3,970 NZD

3 data points across 15 retailers

16 retailers$898 NZD to $3,970 NZD

A
Cheapest Retailer
-
$898 NZD
$505 USD
Final sale: no returns
A
Retailer 2
-
$953 NZD
₹51,073 INR
View
A
Retailer 3
-
$1,211 NZD
A$1,048 AUD
View
B+
Retailer 4
-
$1,285 NZD
$723 USD
View
B+
Retailer 5
-
$1,335 NZD
$751 USD
View
B+
Retailer 6
-
$1,482 NZD
$834 USD
View
B+
Retailer 7
-
$1,482 NZD
$834 USD
View
B+
Retailer 8
-
$1,520 NZD
$855 USD
View
B+
Retailer 9
-
$1,528 NZD
£677 GBP
View
B+
Retailer 10
-
$1,577 NZD
£699 GBP
View
B+
Retailer 11
-
$1,600 NZD
$900 USD
View
B+
Retailer 12
-
$1,610 NZD
£713 GBP
View
B+
Retailer 13
-
$1,717 NZD
€920 EUR
View
B+
Retailer 14
-
$1,759 NZD
$990 USD
View
B
Retailer 15
-
$2,352 NZD
£1,042 GBP
View
Most Expensive
B
NZ Jewellers
ac43799b-b53f-4c3b-89b1-f5bb1ac9729b · Nov 3
$3,970 NZD
$2,234 USD
View
15 more retailers have this diamond
Prices start from $898 NZDSave up to $3,073 NZD

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
$898 NZD