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Radiant|Natural|GIA

0.51ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 7456368502

Certificate GIA 7456368502

Diamond specifications and retailer prices

From $1,771 NZD
As of November 5, 2026
Save $1,883 NZD (52%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,876 NZD at NZ Jewellers · As of November 5, 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 E 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 7456368502. Listed at 17 retailers as of November 4, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7456368502
Dimensions5.99 × 4.39 × 2.30 mm
L/W Ratio1.36
Top View
5.99 mm4.39 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7456368502
Side View
Table 64.0%CrownGirdle: Extremely ThinPavilionCulet: NoneDepth 52.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,876 NZD|Low: $1,750 NZD|High: $4,876 NZD|Avg: $2,509 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 7, 2026
Retailer 4$1,750 NZD
Retailer 5$1,771 NZD
Retailer 6$1,793 NZD
Retailer 14$1,811 NZD
Retailer 15$1,811 NZD
Retailer 11$1,881 NZD
Retailer 12$2,089 NZD
Retailer 2$2,255 NZD
Retailer 8$2,441 NZD
Retailer 3$2,504 NZD
Retailer 7$2,583 NZD
Retailer 9$2,783 NZD
Retailer 10$3,085 NZD
Retailer 13$3,655 NZD
NZ Jewellers$4,876 NZD

31 data points across 15 retailers

17 retailers$1,771 NZD to $3,655 NZD

Retailer 1
-
$1,750 NZD
Price last confirmed 10 days ago
B
Retailer 2
-
$1,771 NZD
View
B
Retailer 3
-
$1,793 NZD
View
Retailer 4
-
$1,811 NZD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$1,811 NZD
View
B
Retailer 6
-
$1,881 NZD
View
B
Retailer 7
-
$1,984 NZD
View
B
Retailer 8
-
$2,004 NZD
View
B
Retailer 9
-
$2,089 NZD
View
B
Retailer 10
-
$2,255 NZD
View
B
Retailer 11
-
$2,441 NZD
View
B
Retailer 12
-
$2,504 NZD
View
Retailer 13
-
$2,583 NZD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$2,783 NZD
View
B
Retailer 15
-
$3,085 NZD
View
B
Retailer 16
-
$3,655 NZD
View
Most Expensive
NZ Jewellers
dd414ce9-e5fe-4936-a423-9b08bc52fde9 · Nov 5
$4,876 NZD
$2,703 USD
View
Price under review
16 more retailers have this diamond
Prices start from $1,771 NZDSave up to $1,883 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
$1,771 NZD