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Radiant|Natural|GIA

1.51ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 5416106145

Certificate GIA 5416106145

Diamond specifications and retailer prices

From $10,540 NZD
As of November 6, 2026
Save $13,176 NZD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $23,716 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5416106145. Listed at 18 retailers as of November 5, 2026, with prices from $10,540 to $23,716, a $13,176 spread on the same certified stone. NZ Jewellers lists it at $23,716. 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
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5416106145
Dimensions7.37 × 5.79 × 3.95 mm
L/W Ratio1.27
Top View
7.37 mm5.79 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5416106145
Side View
Table 64.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $23,716 NZD|Low: $10,540 NZD|High: $23,716 NZD|Avg: $14,833 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10$10,540 NZD
Retailer 8$10,697 NZD
Retailer 3$11,857 NZD
Retailer 11$12,846 NZD
Retailer 9$13,044 NZD
Retailer 2$13,237 NZD
Retailer 4$13,748 NZD
Retailer 5$14,603 NZD
Retailer 6$17,299 NZD
Retailer 7$19,708 NZD
NZ Jewellers$23,716 NZD

45 data points across 11 retailers

18 retailers$10,540 NZD to $23,716 NZD

B
Cheapest Retailer
-
$10,540 NZD
Retailer 2
-
$10,697 NZD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$10,982 NZD
View
B
Retailer 4
-
$11,202 NZD
View
B
Retailer 5
-
$11,357 NZD
View
Retailer 6
-
$11,857 NZD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$11,888 NZD
View
B
Retailer 8
-
$11,956 NZD
View
B
Retailer 9
-
$12,846 NZD
View
B
Retailer 10
-
$13,044 NZD
View
B
Retailer 11
-
$13,237 NZD
View
C
Retailer 12
-
$13,555 NZD
View
C
Retailer 13
-
$13,748 NZD
View
B
Retailer 14
-
$14,603 NZD
View
C
Retailer 15
-
$14,823 NZD
View
C
Retailer 16
-
$17,299 NZD
View
C
Retailer 17
-
$19,708 NZD
View
Most Expensive
C
NZ Jewellers
3ad37f3d-6cfa-4792-824f-277fad820cb8 · Nov 5
$23,716 NZD
$13,147 USD
View
17 more retailers have this diamond
Prices start from $10,540 NZDSave up to $13,176 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
$10,540 NZD