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Radiant|Natural|GIA

0.51ct D SI2 Radiant Natural Diamond

GD • D/SI2 • GIA 3555379453

Certificate GIA 3555379453

Diamond specifications and retailer prices

From $965 NZD
$544 USD
As of October 31, 2026
Save $37 NZD (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,002 NZD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3555379453. Listed at 2 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555379453
Dimensions5.44 × 3.92 × 2.66 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Crystal
Top View
5.44 mm3.92 mm0.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555379453
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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

Last verified: Oct 31
Current: $1,002 NZD|Low: $845 NZD|High: $1,073 NZD|Avg: $1,009 NZD|-4.2%
Rare Carat
Retailer 2
Retailer 3
October 28, 2026
Retailer 2$965 NZD
Rare Carat$1,002 NZD
Retailer 3$1,073 NZD

7 data points across 3 retailers

2 retailers$965 NZD to $1,002 NZD

B+
Cheapest Retailer
-
$965 NZD
$544 USD
Final sale: no returns
Most Expensive
B+
Rare Carat
3555379453 · Nov 1
$1,002 NZD
$565 USD
View
1 more retailer has this diamond
Prices start from $965 NZDSave up to $37 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
$965 NZD