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Radiant|Natural|GIA

1.51ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 1453307957

Certificate GIA 1453307957

Diamond specifications and retailer prices

From $8,774 NZD
$4,945 USD
As of October 28, 2026
Save $10,381 NZD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $19,155 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 J 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 1453307957. Listed at 18 retailers as of October 28, 2026, with prices from $8,774 to $19,155, a $10,381 spread on the same certified stone. NZ Jewellers lists it at $19,155. 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
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle35.1°
OriginNatural
Grading LabGIA
CertificateGIA 1453307957
Dimensions7.85 × 5.88 × 3.84 mm
L/W Ratio1.34
Girdle conditionPolished
Top View
7.85 mm5.88 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1453307957
Side View
Table 66.0%CrownGirdle: STK-THKPavilion 35.1°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $19,155 NZD|Low: $8,302 NZD|High: $19,155 NZD|Avg: $11,331 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 2, 2026
Retailer 10$8,774 NZD
Retailer 5$8,948 NZD
Retailer 12$9,049 NZD
Retailer 13$9,578 NZD
Retailer 11$9,658 NZD
Retailer 7$10,060 NZD
Retailer 3$10,376 NZD
Retailer 14$10,376 NZD
Retailer 15$10,376 NZD
Retailer 2$10,986 NZD
Retailer 4$11,069 NZD
Retailer 6$11,973 NZD
Retailer 8$12,516 NZD
Retailer 9$16,963 NZD
NZ Jewellers$19,155 NZD

44 data points across 15 retailers

18 retailers$8,774 NZD to $19,155 NZD

B+
Cheapest Retailer
-
$8,774 NZD
$4,945 USD
B
Retailer 2
-
$8,948 NZD
$5,043 USD
View
B
Retailer 3
-
$9,049 NZD
$5,100 USD
View
B
Retailer 4
-
$9,578 NZD
$5,398 USD
View
Final sale: no returns
B
Retailer 5
-
$9,658 NZD
$5,443 USD
View
B
Retailer 6
-
$10,376 NZD
$5,848 USD
View
B
Retailer 7
-
$10,376 NZD
$5,848 USD
View
B
Retailer 8
-
$10,376 NZD
$5,848 USD
View
B
Retailer 9
-
$10,986 NZD
£4,876 GBP
View
B
Retailer 10
-
$11,069 NZD
A$9,598 AUD
View
B
Retailer 11
-
$11,391 NZD
$6,420 USD
View
B
Retailer 12
-
$11,391 NZD
$6,420 USD
View
B
Retailer 13
-
$11,781 NZD
$6,640 USD
View
B
Retailer 14
-
$11,973 NZD
$6,748 USD
View
B
Retailer 15
-
$12,516 NZD
€6,718 EUR
View
Retailer 16
-
$12,629 NZD
$7,118 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$16,963 NZD
£7,528 GBP
View
Most Expensive
C
NZ Jewellers
5f9b0cbc-a551-402b-a685-77acf222b159 · Oct 30
$19,155 NZD
$10,796 USD
View
17 more retailers have this diamond
Prices start from $8,774 NZDSave up to $10,381 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+
1.51ct Radiant
$8,774 NZD