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Radiant|Natural|GIA

0.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 14025913

Certificate GIA 14025913

Diamond specifications and retailer prices

From $1,233 NZD
$694 USD
As of October 31, 2026
Save $291 NZD (19%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,524 NZD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 14025913. Listed at 2 retailers as of October 31, 2026, with prices from $1,233 to $1,524, a $291 spread on the same certified stone. 77 Diamonds lists it at $1,524. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 14025913
Dimensions4.46 × 4.34 × 3.13 mm
L/W Ratio1.03
Girdle conditionFaceted
Top View
4.46 mm4.34 mm0.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 14025913
Side View
Table 73.0%CrownGirdle: VTN-STKPavilionCuletDepth 72.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,524 NZD|Low: $1,233 NZD|High: $1,540 NZD|Avg: $1,388 NZD|+1.4%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 2$1,233 NZD
Retailer 3$1,402 NZD
77 Diamonds$1,524 NZD

37 data points across 3 retailers

2 retailers$1,233 NZD to $1,524 NZD

B+
Cheapest Retailer
-
$1,233 NZD
$694 USD
Most Expensive
B
77 Diamonds
RADZMPHVUB7W · Nov 3
$1,524 NZD
£675 GBP
View
1 more retailer has this diamond
Prices start from $1,233 NZDSave up to $291 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.

B+
0.51ct Radiant
$1,233 NZD