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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

GD • E/SI2 • GIA 5526856383

Certificate GIA 5526856383

Diamond specifications and retailer prices

From $5,683 NZD
₹305,042 INR
As of October 29, 2026
Save $6,413 NZD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,445 NZD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5526856383. Listed at 12 retailers as of October 29, 2026, with a 113% 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

1.51
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526856383
Dimensions7.70 × 5.53 × 3.77 mm
L/W Ratio1.39
Top View
7.70 mm5.53 mm1.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5526856383
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.3%

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: Oct 29
Current: $6,799 NZD|Low: $5,672 NZD|High: $14,886 NZD|Avg: $8,079 NZD|-22.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3$5,683 NZD
Retailer 7$6,329 NZD
Retailer 6$6,639 NZD
Retailer 1$6,799 NZD
Retailer 2$7,359 NZD
Retailer 8$7,922 NZD
Retailer 5$8,130 NZD
Retailer 4$12,096 NZD

41 data points across 8 retailers

12 retailers$5,683 NZD to $12,096 NZD

A
Cheapest Retailer
-
$5,683 NZD
₹305,042 INR
A
Retailer 2
-
$6,329 NZD
$3,567 USD
View
A
Retailer 3
-
$6,639 NZD
$3,742 USD
View
Final sale: no returns
A
Retailer 4
-
$6,799 NZD
£3,017 GBP
View
A
Retailer 5
-
$7,359 NZD
£3,266 GBP
View
A
Retailer 6
-
$7,922 NZD
$4,465 USD
View
Retailer 7
-
$7,978 NZD
$4,496 USD
View
Price last confirmed 73 days ago
A
Retailer 8
-
$8,130 NZD
€4,364 EUR
View
Retailer 9
-
$9,233 NZD
$5,204 USD
View
Price last confirmed 40 days ago
Retailer 10
-
$10,655 NZD
$6,005 USD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$12,096 NZD
£5,368 GBP
View
Most Expensive
NZ Jewellers
e1506cdc-c016-429b-9b71-31504b463dd4 · Sep 20
$15,445 NZD
$8,705 USD
View
Price last confirmed 39 days ago
11 more retailers have this diamond
Prices start from $5,683 NZDSave up to $6,413 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
1.51ct Radiant
$5,683 NZD