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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555704351

Certificate GIA 1555704351

Diamond specifications and retailer prices

From €333 EUR
As of November 6, 2026
Save €1,087 EUR (77%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €1,516 EUR at NZ Jewellers · As of September 5, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555704351. Listed at 24 retailers as of November 6, 2026, with a 326% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555704351
Dimensions5.09 × 5.12 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.09 mm5.12 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555704351
Side View
Table 57.0%Crown 34.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.6%

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 6
Current: €1,421 EUR|Low: €333 EUR|High: €1,448 EUR|Avg: €616 EUR|-1.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 17€333 EUR
Retailer 11€390 EUR
Retailer 10€417 EUR
Retailer 2€418 EUR
Retailer 7€425 EUR
Retailer 12€462 EUR
Retailer 14€468 EUR
Retailer 20€477 EUR
Retailer 15€488 EUR
Retailer 6€494 EUR
Retailer 5€523 EUR
Retailer 21€564 EUR
Retailer 13€569 EUR
Retailer 18€583 EUR
Retailer 3€614 EUR
Retailer 9€627 EUR
Retailer 16€627 EUR
Retailer 19€641 EUR
Retailer 8€1,067 EUR
Retailer 4€1,293 EUR
NZ Jewellers€1,421 EUR

20 data points across 21 retailers

24 retailers€333 EUR to €1,421 EUR

A
Cheapest Retailer
-
€333 EUR
A
Retailer 2
-
€390 EUR
View
A
Retailer 3
-
€417 EUR
View
A
Retailer 4
-
€418 EUR
View
Final sale: no returns
A
Retailer 5
-
€425 EUR
View
A
Retailer 6
-
€462 EUR
View
Retailer 7
-
€468 EUR
View
Price last confirmed 19 days ago
A
Retailer 8
-
€477 EUR
View
Retailer 9
-
€484 EUR
View
Price last confirmed 62 days ago
A
Retailer 10
-
€488 EUR
View
A
Retailer 11
-
€494 EUR
View
A
Retailer 12
-
€523 EUR
View
Retailer 13
-
€553 EUR
View
Price last confirmed 58 days ago
A
Retailer 14
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€564 EUR
View
A
Retailer 15
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€569 EUR
View
A
Retailer 16
-
€583 EUR
View
B+
Retailer 17
-
€614 EUR
View
B+
Retailer 18
-
€627 EUR
View
B+
Retailer 19
-
€627 EUR
View
B+
Retailer 20
-
€641 EUR
View
B
Retailer 21
-
€1,067 EUR
View
B
Retailer 22
-
€1,293 EUR
View
B
Retailer 23
-
€1,421 EUR
View
Most Expensive
NZ Jewellers
0fbbc272-3477-4896-9d45-b4c12400f3fe · Sep 5
€1,516 EUR
$1,693 USD
View
Price last confirmed 62 days ago
23 more retailers have this diamond
Prices start from €333 EURSave up to €1,087 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
0.50ct Round
€333 EUR