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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 1568428839

Certificate GIA 1568428839

Diamond specifications and retailer prices

From $10,475 NZD
As of November 6, 2026
Save $12,662 NZD (55%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $23,137 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1568428839. Listed at 32 retailers as of November 5, 2026, with prices from $10,475 to $23,137, a $12,662 spread on the same certified stone. NZ Jewellers lists it at $23,137. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568428839
Dimensions7.70 × 6.00 × 4.11 mm
L/W Ratio1.28
Culet sizeNone
Key to symbols
Feather, Cavity, Indented Natural
Top View
7.70 mm6.00 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568428839
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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: $23,137 NZD|Low: $10,475 NZD|High: $23,137 NZD|Avg: $13,212 NZD
NZ Jewellers
Retailer 2
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Retailer 31
November 7, 2026
Retailer 4$10,475 NZD
Retailer 12$10,715 NZD
Retailer 6$10,930 NZD
Retailer 7$10,942 NZD
Retailer 31$11,080 NZD
Retailer 26$11,179 NZD
Retailer 11$11,568 NZD
Retailer 15$11,568 NZD
Retailer 16$11,608 NZD
Retailer 9$11,913 NZD
Retailer 13$12,292 NZD
Retailer 18$12,292 NZD
Retailer 8$12,322 NZD
Retailer 20$12,533 NZD
Retailer 19$12,727 NZD
Retailer 17$12,768 NZD
Retailer 2$12,914 NZD
Retailer 24$12,965 NZD
Retailer 21$12,981 NZD
Retailer 22$12,981 NZD
Retailer 25$13,710 NZD
Retailer 5$13,890 NZD
Retailer 23$13,890 NZD
Retailer 29$13,942 NZD
Retailer 14$14,078 NZD
Retailer 27$14,247 NZD
Retailer 10$14,359 NZD
Retailer 3$14,462 NZD
Retailer 28$16,879 NZD
Retailer 30$19,280 NZD
NZ Jewellers$23,137 NZD

10 data points across 31 retailers

32 retailers$10,475 NZD to $23,137 NZD

B+
Cheapest Retailer
-
$10,475 NZD
B+
Retailer 2
-
$10,715 NZD
View
B+
Retailer 3
-
$10,742 NZD
View
B+
Retailer 4
-
$10,930 NZD
View
B+
Retailer 5
-
$10,942 NZD
View
B+
Retailer 6
-
$11,080 NZD
View
B+
Retailer 7
-
$11,179 NZD
View
Retailer 8
-
$11,568 NZD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$11,568 NZD
View
Final sale: no returns
B+
Retailer 10
-
$11,608 NZD
View
B+
Retailer 11
-
$11,913 NZD
View
B+
Retailer 12
-
$12,292 NZD
View
B+
Retailer 13
-
$12,292 NZD
View
B+
Retailer 14
-
$12,322 NZD
View
B
Retailer 15
-
$12,533 NZD
View
B
Retailer 16
-
$12,727 NZD
View
B
Retailer 17
-
$12,768 NZD
View
B+
Retailer 18
-
$12,914 NZD
View
B+
Retailer 19
-
$12,965 NZD
View
B
Retailer 20
-
$12,981 NZD
View
B
Retailer 21
-
$12,981 NZD
View
B
Retailer 22
-
$13,710 NZD
View
B
Retailer 23
-
$13,890 NZD
View
B
Retailer 24
-
$13,890 NZD
View
B
Retailer 25
-
$13,942 NZD
View
B
Retailer 26
-
$14,078 NZD
View
B
Retailer 27
-
$14,247 NZD
View
B
Retailer 28
-
$14,359 NZD
View
B
Retailer 29
-
$14,462 NZD
View
B
Retailer 30
-
$16,879 NZD
View
B
Retailer 31
-
$19,280 NZD
View
Most Expensive
C
NZ Jewellers
f114e483-5814-48b5-9cb6-75a56426bb52 · Nov 5
$23,137 NZD
$12,826 USD
View
31 more retailers have this diamond
Prices start from $10,475 NZDSave up to $12,662 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
$10,475 NZD