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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

VG • H/SI2 • GIA 1425086456

Certificate GIA 1425086456

Diamond specifications and retailer prices

From $9,344 NZD
As of November 6, 2026
Save $11,507 NZD (55%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $20,851 NZD at NZ Jewellers · As of November 5, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1425086456. Listed at 26 retailers as of November 5, 2026, with prices from $9,344 to $20,851, a $11,507 spread on the same certified stone. NZ Jewellers lists it at $20,851. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425086456
Dimensions9.48 × 5.24 × 3.03 mm
L/W Ratio1.81
Culet sizeNone
Top View
9.48 mm5.24 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425086456
Side View
Table 71.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.9%

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: Nov 6
Current: $20,851 NZD|Low: $9,039 NZD|High: $20,851 NZD|Avg: $12,556 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
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 11$9,344 NZD
Retailer 8$9,851 NZD
Retailer 15$9,943 NZD
Retailer 20$10,513 NZD
Retailer 6$11,128 NZD
Retailer 3$11,294 NZD
Retailer 7$11,294 NZD
Retailer 18$11,294 NZD
Retailer 5$11,754 NZD
Retailer 2$11,839 NZD
Retailer 19$12,223 NZD
Retailer 4$12,573 NZD
Retailer 17$12,573 NZD
Retailer 12$12,847 NZD
Retailer 16$12,988 NZD
Retailer 10$13,033 NZD
Retailer 13$13,545 NZD
Retailer 9$13,742 NZD
Retailer 14$18,367 NZD
NZ Jewellers$20,851 NZD

45 data points across 20 retailers

26 retailers$9,344 NZD to $20,851 NZD

B+
Cheapest Retailer
-
$9,344 NZD
B+
Retailer 2
-
$9,739 NZD
View
B+
Retailer 3
-
$9,851 NZD
View
B+
Retailer 4
-
$9,943 NZD
View
Final sale: no returns
B+
Retailer 5
-
$9,981 NZD
View
B+
Retailer 6
-
$10,237 NZD
View
B+
Retailer 7
-
$10,432 NZD
View
B+
Retailer 8
-
$10,513 NZD
View
B+
Retailer 9
-
$11,128 NZD
View
Retailer 10
-
$11,294 NZD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$11,294 NZD
View
B+
Retailer 12
-
$11,294 NZD
View
B
Retailer 13
-
$11,754 NZD
View
B+
Retailer 14
-
$11,839 NZD
View
B
Retailer 15
-
$11,913 NZD
View
B
Retailer 16
-
$12,573 NZD
View
B
Retailer 17
-
$12,573 NZD
View
B
Retailer 18
-
$12,847 NZD
View
B
Retailer 19
-
$12,988 NZD
View
B
Retailer 20
-
$13,033 NZD
View
B
Retailer 21
-
$13,545 NZD
View
Retailer 22
-
$13,742 NZD
View
Price last confirmed 15 days ago
B
Retailer 23
-
$14,130 NZD
View
B
Retailer 24
-
$18,073 NZD
View
B
Retailer 25
-
$18,367 NZD
View
Most Expensive
C
NZ Jewellers
ae486e7b-c20a-420b-8574-a1a121338cdc · Nov 5
$20,851 NZD
$11,559 USD
View
25 more retailers have this diamond
Prices start from $9,344 NZDSave up to $11,507 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
$9,344 NZD