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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 7556596424

Certificate GIA 7556596424

Diamond specifications and retailer prices

From $9,644 NZD
As of November 4, 2026
Save $8,116 NZD (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $20,215 NZD at NZ Jewellers · As of October 3, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556596424. Listed at 23 retailers as of November 4, 2026, with a 84% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556596424
Dimensions7.91 × 5.86 × 3.77 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.91 mm5.86 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556596424
Side View
Table 67.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 64.2%

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 4
Current: $11,590 NZD|Low: $9,158 NZD|High: $18,019 NZD|Avg: $12,135 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$9,644 NZD
Retailer 6$10,107 NZD
Retailer 5$10,749 NZD
Retailer 1$11,590 NZD
Retailer 2$11,646 NZD
Retailer 8$12,321 NZD
Retailer 3$13,131 NZD
Retailer 4$17,759 NZD

36 data points across 8 retailers

23 retailers$9,644 NZD to $17,759 NZD

A
Cheapest Retailer
-
$9,644 NZD
A
Retailer 2
-
$10,024 NZD
View
A
Retailer 3
-
$10,107 NZD
View
Final sale: no returns
B+
Retailer 4
-
$10,293 NZD
View
B+
Retailer 5
-
$10,749 NZD
View
Retailer 6
-
$10,950 NZD
View
Price last confirmed 45 days ago
Retailer 7
-
$10,950 NZD
View
Price last confirmed 30 days ago
Retailer 8
-
$10,950 NZD
View
Price last confirmed 48 days ago
Retailer 9
-
$11,334 NZD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$11,590 NZD
View
B+
Retailer 11
-
$11,646 NZD
View
B+
Retailer 12
-
$11,659 NZD
View
B+
Retailer 13
-
$12,321 NZD
View
B+
Retailer 14
-
$12,321 NZD
View
Retailer 15
-
$12,635 NZD
View
Price last confirmed 49 days ago
Retailer 16
-
$12,635 NZD
View
Price last confirmed 44 days ago
Retailer 17
-
$12,635 NZD
View
Price last confirmed 29 days ago
B+
Retailer 18
-
$12,717 NZD
View
B+
Retailer 19
-
$13,131 NZD
View
B
Retailer 20
-
$17,759 NZD
View
Retailer 21
-
$20,215 NZD
View
Price last confirmed 50 days ago
Retailer 22
-
$20,215 NZD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
b5aeb3f1-25d7-4d6b-af7b-e3f58e43225a · Oct 3
$20,215 NZD
$11,206 USD
View
Price last confirmed 34 days ago
22 more retailers have this diamond
Prices start from $9,644 NZDSave up to $8,116 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
$9,644 NZD