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Radiant|Natural|GIA

0.51ct D IF Radiant Natural Diamond

ID • D/IF • GIA 2557954542

Certificate GIA 2557954542

Diamond specifications and retailer prices

From $1,334 NZD
As of November 5, 2026
Save $1,288 NZD (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,513 NZD at NZ Jewellers · As of September 29, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557954542. Listed at 10 retailers as of November 2, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle46.21°
Pavilion angle31.57°
OriginNatural
Grading LabGIA
CertificateGIA 2557954542
Dimensions5.90 × 4.05 × 2.45 mm
L/W Ratio1.46
Girdle conditionSlightly Thick
Key to symbols
Minor Details of Polish
Top View
5.90 mm4.05 mm0.51 ctD / IF
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557954542
Side View
Table 70.0%Crown 46.21°GirdlePavilion 31.57°CuletDepth 60.5%

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 5
Current: $1,615 NZD|Low: $1,334 NZD|High: $2,667 NZD|Avg: $1,940 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 3$1,334 NZD
Retailer 1$1,615 NZD
Retailer 4$1,734 NZD
Retailer 5$2,163 NZD
Retailer 2$2,622 NZD

36 data points across 5 retailers

10 retailers$1,334 NZD to $2,622 NZD

A
Cheapest Retailer
-
$1,334 NZD
Retailer 2
-
$1,439 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$1,439 NZD
View
Price last confirmed 45 days ago
Retailer 4
-
$1,494 NZD
View
Price last confirmed 36 days ago
A
Retailer 5
-
$1,615 NZD
View
A
Retailer 6
-
$1,734 NZD
View
Retailer 7
-
$2,163 NZD
View
Price last confirmed 32 days ago
B+
Retailer 8
-
$2,622 NZD
View
Retailer 9
-
$4,513 NZD
View
Price last confirmed 47 days ago
Most Expensive
NZ Jewellers
21b98894-6ed0-4fc5-afce-23bb7cbeeeb6 · Sep 29
$4,513 NZD
$2,537 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $1,334 NZDSave up to $1,288 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
$1,334 NZD