Round|Natural|GIA

0.52ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1428303321

Certificate GIA 1428303321

Diamond specifications and retailer prices

From €378 EUR
As of November 6, 2026
Save €664 EUR (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,515 EUR at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 0.52ct natural round diamond

This 0.52ct 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 1428303321. Listed at 18 retailers as of November 4, 2026, with a 176% 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

0.52
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1428303321
Dimensions5.15 × 5.13 × 3.22 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
5.15 mm5.13 mm0.52 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1428303321
Side View
Table 58.0%Crown 35°Girdle: MD-STKPavilion 41.6°Culet: NoneDepth 62.6%

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: €1,418 EUR|Low: €378 EUR|High: €1,515 EUR|Avg: €661 EUR|-6.4%
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
November 6, 2026
Retailer 14€378 EUR
Retailer 4€431 EUR
Retailer 7€452 EUR
Retailer 11€457 EUR
Retailer 6€472 EUR
Retailer 13€486 EUR
Retailer 3€521 EUR
Retailer 8€537 EUR
Retailer 2€557 EUR
Retailer 5€569 EUR
Retailer 15€582 EUR
Retailer 16€631 EUR
Retailer 9€671 EUR
Retailer 10€700 EUR
Retailer 12€1,042 EUR
NZ Jewellers€1,418 EUR

44 data points across 16 retailers

18 retailers€378 EUR to €1,042 EUR

A
Cheapest Retailer
-
€378 EUR
Retailer 2
-
€431 EUR
View
Price last confirmed 19 days ago
Retailer 3
-
€452 EUR
View
Price last confirmed 15 days ago
A
Retailer 4
-
€457 EUR
View
Retailer 5
-
€472 EUR
View
Price last confirmed 10 days ago
Retailer 6
-
€486 EUR
View
Price last confirmed 15 days ago
Retailer 7
-
€520 EUR
View
Price last confirmed 21 days ago
Retailer 8
-
€521 EUR
View
Price last confirmed 17 days ago
Retailer 9
-
€557 EUR
View
Price last confirmed 45 days ago
B+
Retailer 10
-
€557 EUR
View
B+
Retailer 11
-
€569 EUR
View
B+
Retailer 12
-
€582 EUR
View
B
Retailer 13
-
€631 EUR
View
B
Retailer 14
-
€671 EUR
View
B+
Retailer 15
-
€700 EUR
View
B
Retailer 16
-
€1,042 EUR
View
Retailer 17
-
€1,418 EUR
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
e0901733-6c13-47bb-89ed-0385ec16f2b4 · Sep 19
€1,515 EUR
$1,691 USD
View
Price last confirmed 48 days ago
17 more retailers have this diamond
Prices start from €378 EURSave up to €664 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
0.52ct Round
€378 EUR