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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 46

Certificate GIA 46

Diamond specifications and retailer prices

From €5,265 EUR
$5,905 USD
As of October 28, 2026
Save €6,416 EUR (55%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €11,681 EUR at NZ Jewellers · As of October 30, 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 9 retailers as of October 28, 2026, with prices from €5,265 to €11,681, a €6,416 spread on the same certified stone. NZ Jewellers lists it at €11,681. 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
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 46
Dimensions7.50 × 5.75 × 3.96 mm
L/W Ratio1.30
Top View
7.50 mm5.75 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 46
Side View
Table 67.0%CrownGirdle: Thick to Very ThickPavilionCulet: NDepth 68.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €11,681 EUR|Low: €4,713 EUR|High: €11,681 EUR|Avg: €6,650 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9€4,713 EUR
Retailer 3€5,265 EUR
Retailer 8€5,568 EUR
Retailer 2€5,841 EUR
Retailer 7€6,296 EUR
Retailer 5€6,327 EUR
Retailer 6€6,425 EUR
Retailer 4€7,300 EUR
NZ Jewellers€11,681 EUR

10 data points across 9 retailers

9 retailers€5,265 EUR to €11,681 EUR

A
Cheapest Retailer
-
€5,265 EUR
$5,905 USD
B+
Retailer 2
-
€5,568 EUR
$6,245 USD
View
B+
Retailer 3
-
€5,841 EUR
$6,551 USD
View
B+
Retailer 4
-
€6,296 EUR
$7,062 USD
View
B+
Retailer 5
-
€6,327 EUR
$7,096 USD
View
B+
Retailer 6
-
€6,425 EUR
$7,206 USD
View
B
Retailer 7
-
€7,300 EUR
$8,188 USD
View
Retailer 8
-
€7,300 EUR
$8,188 USD
View
Price last confirmed 31 days ago
Most Expensive
B
NZ Jewellers
20b88096-87c3-45b6-9f27-276671eeb36d · Oct 30
€11,681 EUR
$13,101 USD
View
8 more retailers have this diamond
Prices start from €5,265 EURSave up to €6,416 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.

A
1.51ct Radiant
€5,265 EUR