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Round|Natural|GIA

1.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1234

Certificate GIA 1234

Diamond specifications and retailer prices

From €4,952 EUR
As of November 5, 2026
Save €1,253 EUR (20%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €6,205 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 5 retailers as of November 5, 2026, with prices from €4,952 to €6,205, a €1,253 spread on the same certified stone. Blue Nile lists it at €6,205. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1234
Dimensions7.28 × 7.33 × 4.57 mm
L/W Ratio1.01
Top View
7.28 mm7.33 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1234
Side View
Table 54.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.5%

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: Nov 5
Current: €6,205 EUR|Low: €3,999 EUR|High: €6,869 EUR|Avg: €5,634 EUR|-7.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7€3,999 EUR
Retailer 4€4,952 EUR
Retailer 3€5,181 EUR
Retailer 5€5,408 EUR
Retailer 2€5,494 EUR
Blue Nile€6,205 EUR
Retailer 6€6,869 EUR

40 data points across 7 retailers

5 retailers€4,952 EUR to €6,205 EUR

A
Cheapest Retailer
-
€4,952 EUR
A
Retailer 2
-
€5,181 EUR
View
A
Retailer 3
-
€5,408 EUR
View
A
Retailer 4
-
€5,494 EUR
View
Most Expensive
A
Blue Nile
30153722 · Nov 5
€6,205 EUR
$6,964 USD
View
4 more retailers have this diamond
Prices start from €4,952 EURSave up to €1,253 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
1.50ct Round
€4,952 EUR