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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 1439197082

Certificate GIA 1439197082

Diamond specifications and retailer prices

From $10,297 NZD
As of November 6, 2026
Save $11,134 NZD (52%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $21,430 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1439197082. Listed at 17 retailers as of November 5, 2026, with prices from $10,297 to $21,430, a $11,134 spread on the same certified stone. NZ Jewellers lists it at $21,430. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1439197082
Dimensions7.39 × 5.62 × 4.19 mm
L/W Ratio1.31
Key to symbols
Feather, Crystal, Needle
Top View
7.39 mm5.62 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1439197082
Side View
Table 72.0%CrownGirdlePavilionCulet: NoneDepth 74.6%

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: $21,430 NZD|Low: $10,205 NZD|High: $21,430 NZD|Avg: $13,524 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 7, 2026
Retailer 14$10,297 NZD
Retailer 7$11,175 NZD
Retailer 5$11,826 NZD
Retailer 17$11,828 NZD
Retailer 6$11,861 NZD
Retailer 10$12,007 NZD
Retailer 2$12,167 NZD
Retailer 15$12,436 NZD
Retailer 8$12,685 NZD
Retailer 9$12,736 NZD
Retailer 3$12,813 NZD
Retailer 16$13,010 NZD
Retailer 11$13,923 NZD
Retailer 4$14,785 NZD
Retailer 12$15,633 NZD
Retailer 13$18,826 NZD
NZ Jewellers$21,430 NZD

30 data points across 17 retailers

17 retailers$10,297 NZD to $21,430 NZD

B+
Cheapest Retailer
-
$10,297 NZD
B+
Retailer 2
-
$11,175 NZD
View
B
Retailer 3
-
$11,826 NZD
View
Final sale: no returns
Retailer 4
-
$11,828 NZD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$11,861 NZD
View
B
Retailer 6
-
$12,007 NZD
View
B
Retailer 7
-
$12,167 NZD
View
Retailer 8
-
$12,436 NZD
View
Price last confirmed 16 days ago
B
Retailer 9
-
$12,736 NZD
View
B
Retailer 10
-
$12,813 NZD
View
B
Retailer 11
-
$13,010 NZD
View
B
Retailer 12
-
$13,104 NZD
View
B
Retailer 13
-
$13,923 NZD
View
B
Retailer 14
-
$14,785 NZD
View
B
Retailer 15
-
$15,633 NZD
View
C
Retailer 16
-
$18,826 NZD
View
Most Expensive
C
NZ Jewellers
fa951e26-714d-428c-ba9c-c37894228a87 · Nov 5
$21,430 NZD
$11,880 USD
View
16 more retailers have this diamond
Prices start from $10,297 NZDSave up to $11,134 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
$10,297 NZD