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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 €5,233 EUR
As of November 6, 2026
Save €6,542 EUR (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,775 EUR 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 €5,233 to €11,775, a €6,542 spread on the same certified stone. NZ Jewellers lists it at €11,775. 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

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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: €11,775 EUR|Low: €5,233 EUR|High: €11,775 EUR|Avg: €7,365 EUR
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€5,233 EUR
Retailer 8€5,311 EUR
Retailer 3€5,887 EUR
Retailer 11€6,378 EUR
Retailer 9€6,477 EUR
Retailer 2€6,572 EUR
Retailer 4€6,826 EUR
Retailer 5€7,250 EUR
Retailer 6€8,589 EUR
Retailer 7€9,785 EUR
NZ Jewellers€11,775 EUR

45 data points across 11 retailers

18 retailers€5,233 EUR to €11,775 EUR

B
Cheapest Retailer
-
€5,233 EUR
Retailer 2
-
€5,311 EUR
View
Price last confirmed 10 days ago
B
Retailer 3
-
€5,453 EUR
View
B
Retailer 4
-
€5,562 EUR
View
B
Retailer 5
-
€5,639 EUR
View
Retailer 6
-
€5,887 EUR
View
Price last confirmed 9 days ago
B
Retailer 7
-
€5,902 EUR
View
B
Retailer 8
-
€5,936 EUR
View
B
Retailer 9
-
€6,378 EUR
View
B
Retailer 10
-
€6,477 EUR
View
B
Retailer 11
-
€6,572 EUR
View
C
Retailer 12
-
€6,730 EUR
View
C
Retailer 13
-
€6,826 EUR
View
B
Retailer 14
-
€7,250 EUR
View
C
Retailer 15
-
€7,360 EUR
View
C
Retailer 16
-
€8,589 EUR
View
C
Retailer 17
-
€9,785 EUR
View
Most Expensive
C
NZ Jewellers
3ad37f3d-6cfa-4792-824f-277fad820cb8 · Nov 5
€11,775 EUR
$13,147 USD
View
17 more retailers have this diamond
Prices start from €5,233 EURSave up to €6,542 EUR

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
€5,233 EUR