CaratHunter
Plans
Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 7421144366

Certificate GIA 7421144366

Diamond specifications and retailer prices

From $6,529 NZD
HK$28,700 HKD
As of November 1, 2026
Save $8,823 NZD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,352 NZD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7421144366. Listed at 16 retailers as of October 30, 2026, with prices from $6,529 to $15,352, a $8,823 spread on the same certified stone. NZ Jewellers lists it at $15,352. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7421144366
Dimensions7.15 × 5.51 × 4.00 mm
L/W Ratio1.30
Top View
7.15 mm5.51 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7421144366
Side View
Table 71.0%CrownGirdlePavilionCulet: NoneDepth 72.6%

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 1
Current: $15,352 NZD|Low: $6,484 NZD|High: $15,352 NZD|Avg: $9,565 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
Retailer 16
November 2, 2026
Retailer 12$6,529 NZD
Retailer 4$7,815 NZD
Retailer 3$8,133 NZD
Retailer 2$8,595 NZD
Retailer 10$8,763 NZD
Retailer 13$8,812 NZD
Retailer 14$8,812 NZD
Retailer 15$8,812 NZD
Retailer 6$8,856 NZD
Retailer 7$8,922 NZD
Retailer 5$9,081 NZD
Retailer 9$9,969 NZD
Retailer 16$10,168 NZD
Retailer 8$10,723 NZD
Retailer 11$14,035 NZD
NZ Jewellers$15,352 NZD

27 data points across 16 retailers

16 retailers$6,529 NZD to $15,352 NZD

A
Cheapest Retailer
-
$6,529 NZD
HK$28,700 HKD
B+
Retailer 2
-
$7,685 NZD
$4,324 USD
View
B+
Retailer 3
-
$7,815 NZD
$4,397 USD
View
B+
Retailer 4
-
$8,133 NZD
$4,576 USD
View
Final sale: no returns
Retailer 5
-
$8,312 NZD
SGD 6,320 SGD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$8,595 NZD
£3,808 GBP
View
B+
Retailer 7
-
$8,763 NZD
£3,882 GBP
View
B+
Retailer 8
-
$8,812 NZD
$4,958 USD
View
B+
Retailer 9
-
$8,812 NZD
$4,958 USD
View
B+
Retailer 10
-
$8,812 NZD
$4,958 USD
View
B+
Retailer 11
-
$8,922 NZD
$5,020 USD
View
B+
Retailer 12
-
$9,081 NZD
$5,110 USD
View
B+
Retailer 13
-
$9,969 NZD
€5,342 EUR
View
B+
Retailer 14
-
$10,168 NZD
$5,721 USD
View
B
Retailer 15
-
$14,035 NZD
£6,218 GBP
View
Most Expensive
B
NZ Jewellers
40275fa9-c557-4d0a-a8b3-c15329c4584e · Oct 30
$15,352 NZD
$8,638 USD
View
15 more retailers have this diamond
Prices start from $6,529 NZDSave up to $8,823 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
$6,529 NZD