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Radiant|Natural|GIA

0.51ct G SI2 Radiant Natural Diamond

GD • G/SI2 • GIA 5231715556

Certificate GIA 5231715556

Diamond specifications and retailer prices

From $720 NZD
$406 USD
As of November 2, 2026
Save $248 NZD (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $968 NZD at 77 Diamonds · As of November 1, 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 G 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 5231715556. Listed at 2 retailers as of November 1, 2026, with prices from $720 to $968, a $248 spread on the same certified stone. 77 Diamonds lists it at $968. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryFair
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5231715556
Dimensions5.77 × 4.25 × 2.47 mm
L/W Ratio1.36
Top View
5.77 mm4.25 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishGood
SymmetryFair
FluorescenceFaint
CertificateGIA 5231715556
Side View
Table 61.0%CrownGirdlePavilionCuletDepth 58.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $968 NZD|Low: $717 NZD|High: $978 NZD|Avg: $845 NZD|+1.3%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2$720 NZD
77 Diamonds$968 NZD

32 data points across 2 retailers

2 retailers$720 NZD to $968 NZD

B+
Cheapest Retailer
-
$720 NZD
$406 USD
Most Expensive
B+
77 Diamonds
RADZJCWJ2CVE · Nov 1
$968 NZD
£430 GBP
View
1 more retailer has this diamond
Prices start from $720 NZDSave up to $248 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
$720 NZD