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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

ID • I/SI2 • GIA 5393568057

Certificate GIA 5393568057

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5393568057. 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. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5393568057
Dimensions7.41 × 5.65 × 3.88 mm
L/W Ratio1.31
Top View
7.41 mm5.65 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5393568057
Side View
Table 66.0%CrownGirdle: SLI-THKPavilionCulet: NoneDepth 68.8%

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: $9,348 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
Retailer 17
November 2, 2026
Retailer 13$6,529 NZD
Retailer 6$7,349 NZD
Retailer 9$7,685 NZD
Retailer 4$7,815 NZD
Retailer 3$8,133 NZD
Retailer 2$8,595 NZD
Retailer 11$8,763 NZD
Retailer 14$8,812 NZD
Retailer 15$8,812 NZD
Retailer 16$8,812 NZD
Retailer 7$8,922 NZD
Retailer 5$9,081 NZD
Retailer 10$9,969 NZD
Retailer 17$10,168 NZD
Retailer 8$10,723 NZD
Retailer 12$14,035 NZD
NZ Jewellers$15,352 NZD

26 data points across 17 retailers

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

A
Cheapest Retailer
-
$6,529 NZD
HK$28,700 HKD
A
Retailer 2
-
$7,685 NZD
$4,324 USD
View
A
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
A
Retailer 6
-
$8,595 NZD
£3,808 GBP
View
A
Retailer 7
-
$8,763 NZD
£3,882 GBP
View
B+
Retailer 8
-
$8,812 NZD
$4,958 USD
View
A
Retailer 9
-
$8,812 NZD
$4,958 USD
View
A
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
968484e3-63f5-41a0-b601-95c083e8afb6 · 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