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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2567223287

Certificate GIA 2567223287

Diamond specifications and retailer prices

From €339 EUR
As of November 6, 2026
Save €1,120 EUR (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,459 EUR at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2567223287. Listed at 16 retailers as of November 6, 2026, with prices from €339 to €1,459, a €1,120 spread on the same certified stone. NZ Jewellers lists it at €1,459. 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

0.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2567223287
Dimensions5.11 × 5.13 × 3.13 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.11 mm5.13 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2567223287
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.1%

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: Nov 6
Current: €1,459 EUR|Low: €339 EUR|High: €1,508 EUR|Avg: €624 EUR|-3.3%
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
November 7, 2026
Retailer 9€339 EUR
Retailer 15€390 EUR
Retailer 5€429 EUR
Retailer 6€465 EUR
Retailer 11€484 EUR
Retailer 7€493 EUR
Retailer 14€501 EUR
Retailer 4€537 EUR
Retailer 12€537 EUR
Retailer 2€574 EUR
Retailer 13€586 EUR
Retailer 10€598 EUR
Retailer 8€625 EUR
Retailer 3€1,072 EUR
NZ Jewellers€1,459 EUR

32 data points across 15 retailers

16 retailers€339 EUR to €1,459 EUR

A
Cheapest Retailer
-
€339 EUR
A
Retailer 2
-
€390 EUR
View
A
Retailer 3
-
€429 EUR
View
Final sale: no returns
A
Retailer 4
-
€465 EUR
View
A
Retailer 5
-
€484 EUR
View
A
Retailer 6
-
€493 EUR
View
A
Retailer 7
-
€501 EUR
View
A
Retailer 8
-
€537 EUR
View
A
Retailer 9
-
€537 EUR
View
A
Retailer 10
-
€574 EUR
View
A
Retailer 11
-
€586 EUR
View
A
Retailer 12
-
€598 EUR
View
B+
Retailer 13
-
€606 EUR
View
B+
Retailer 14
-
€625 EUR
View
B
Retailer 15
-
€1,072 EUR
View
Most Expensive
B
NZ Jewellers
cb82a508-45f8-47d3-b045-88e028bda487 · Nov 6
€1,459 EUR
$1,629 USD
View
15 more retailers have this diamond
Prices start from €339 EURSave up to €1,120 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
0.51ct Round
€339 EUR