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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

GD • E/SI1 • GIA 1549544742

Certificate GIA 1549544742

Diamond specifications and retailer prices

From €3,915 EUR
₹416,516 INR
As of October 30, 2026
Save €1,034 EUR (21%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €4,949 EUR at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1549544742. Listed at 7 retailers as of October 29, 2026, with prices from €3,915 to €4,949, a €1,034 spread on the same certified stone. Blue Nile lists it at €4,949. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549544742
Dimensions6.90 × 5.63 × 4.06 mm
L/W Ratio1.23
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.90 mm5.63 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549544742
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.1%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €4,949 EUR|Low: €3,891 EUR|High: €5,687 EUR|Avg: €4,760 EUR|-10.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2€3,915 EUR
Retailer 3€4,176 EUR
Retailer 5€4,398 EUR
Retailer 4€4,512 EUR
Retailer 6€4,903 EUR
Blue Nile€4,949 EUR
Retailer 7€5,687 EUR

45 data points across 7 retailers

7 retailers€3,915 EUR to €4,949 EUR

A
Cheapest Retailer
-
€3,915 EUR
₹416,516 INR
A
Retailer 2
-
€4,176 EUR
$4,666 USD
View
A
Retailer 3
-
€4,398 EUR
MYR 20,016 MYR
View
A
Retailer 4
-
€4,512 EUR
SGD 6,812 SGD
View
B+
Retailer 5
-
€4,879 EUR
A$8,386 AUD
View
B+
Retailer 6
-
€4,903 EUR
A$8,428 AUD
View
Most Expensive
B+
Blue Nile
28033809 · Oct 29
€4,949 EUR
$5,529 USD
View
6 more retailers have this diamond
Prices start from €3,915 EURSave up to €1,034 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
€3,915 EUR