Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1453131886

Certificate GIA 1453131886

Diamond specifications and retailer prices

From €433 EUR
As of November 4, 2026
Save €567 EUR (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,661 EUR at NZ Jewellers · As of September 24, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1453131886. Listed at 18 retailers as of November 2, 2026, with a 131% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1453131886
Dimensions5.12 × 5.09 × 3.13 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp
Top View
5.12 mm5.09 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1453131886
Side View
Table 57.0%Crown 34°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €1,661 EUR|Low: €433 EUR|High: €1,661 EUR|Avg: €740 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10€433 EUR
Retailer 7€441 EUR
Retailer 3€451 EUR
Retailer 4€530 EUR
Retailer 2€557 EUR
Retailer 8€615 EUR
Retailer 5€648 EUR
Retailer 6€672 EUR
Retailer 9€1,000 EUR
NZ Jewellers€1,661 EUR

39 data points across 10 retailers

18 retailers€433 EUR to €1,000 EUR

A
Cheapest Retailer
-
€433 EUR
Retailer 2
-
€433 EUR
View
Price last confirmed 43 days ago
A
Retailer 3
-
€441 EUR
View
B+
Retailer 4
-
€451 EUR
View
B+
Retailer 5
-
€467 EUR
View
Retailer 6
-
€467 EUR
View
Price last confirmed 8 days ago
B+
Retailer 7
-
€500 EUR
View
Retailer 8
-
€500 EUR
View
Price last confirmed 45 days ago
B+
Retailer 9
-
€530 EUR
View
B+
Retailer 10
-
€550 EUR
View
B+
Retailer 11
-
€557 EUR
View
B+
Retailer 12
-
€565 EUR
View
B
Retailer 13
-
€615 EUR
View
B
Retailer 14
-
€648 EUR
View
B+
Retailer 15
-
€672 EUR
View
B
Retailer 16
-
€1,000 EUR
View
Retailer 17
-
€1,661 EUR
View
Price under review
Most Expensive
NZ Jewellers
330fd32f-c173-494c-acba-a0e135a55120 · Sep 24
€1,661 EUR
$1,864 USD
View
Price under review
17 more retailers have this diamond
Prices start from €433 EURSave up to €567 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
€433 EUR