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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 $8,219 CAD
As of November 6, 2026
Save $10,274 CAD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $18,493 CAD 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 $8,219 to $18,493, a $10,274 spread on the same certified stone. NZ Jewellers lists it at $18,493. 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
Color
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

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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: $18,493 CAD|Low: $8,219 CAD|High: $18,493 CAD|Avg: $11,566 CAD
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$8,219 CAD
Retailer 8$8,341 CAD
Retailer 3$9,246 CAD
Retailer 11$10,016 CAD
Retailer 9$10,171 CAD
Retailer 2$10,322 CAD
Retailer 4$10,720 CAD
Retailer 5$11,386 CAD
Retailer 6$13,489 CAD
Retailer 7$15,367 CAD
NZ Jewellers$18,493 CAD

45 data points across 11 retailers

18 retailers$8,219 CAD to $18,493 CAD

B
Cheapest Retailer
-
$8,219 CAD
Retailer 2
-
$8,341 CAD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$8,563 CAD
View
B
Retailer 4
-
$8,735 CAD
View
B
Retailer 5
-
$8,856 CAD
View
Retailer 6
-
$9,246 CAD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$9,269 CAD
View
B
Retailer 8
-
$9,323 CAD
View
B
Retailer 9
-
$10,016 CAD
View
B
Retailer 10
-
$10,171 CAD
View
B
Retailer 11
-
$10,322 CAD
View
C
Retailer 12
-
$10,569 CAD
View
C
Retailer 13
-
$10,720 CAD
View
B
Retailer 14
-
$11,386 CAD
View
C
Retailer 15
-
$11,558 CAD
View
C
Retailer 16
-
$13,489 CAD
View
C
Retailer 17
-
$15,367 CAD
View
Most Expensive
C
NZ Jewellers
3ad37f3d-6cfa-4792-824f-277fad820cb8 · Nov 5
$18,493 CAD
$13,147 USD
View
17 more retailers have this diamond
Prices start from $8,219 CADSave up to $10,274 CAD

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
$8,219 CAD