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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6562618778

Certificate GIA 6562618778

Diamond specifications and retailer prices

From €327 EUR
As of November 6, 2026
Save €942 EUR (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,268 EUR at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

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 6562618778. Listed at 10 retailers as of November 5, 2026, with prices from €327 to €1,268, a €942 spread on the same certified stone. Diamond Exchange Canada lists it at €1,268. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562618778
Dimensions5.18 × 5.20 × 3.12 mm
L/W Ratio1.00
Top View
5.18 mm5.20 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562618778
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.1%

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: €1,268 EUR|Low: €327 EUR|High: €1,330 EUR|Avg: €593 EUR|-4.6%
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3€327 EUR
Retailer 8€378 EUR
Retailer 10€378 EUR
Retailer 6€402 EUR
Retailer 7€408 EUR
Retailer 4€468 EUR
Retailer 5€605 EUR
Retailer 9€614 EUR
Retailer 2€717 EUR
Diamond Exchange Canada€1,268 EUR

25 data points across 10 retailers

10 retailers€327 EUR to €1,268 EUR

A
Cheapest Retailer
-
€327 EUR
A
Retailer 2
-
€378 EUR
View
A
Retailer 3
-
€378 EUR
View
A
Retailer 4
-
€402 EUR
View
A
Retailer 5
-
€408 EUR
View
A
Retailer 6
-
€468 EUR
View
A
Retailer 7
-
€605 EUR
View
B+
Retailer 8
-
€614 EUR
View
B+
Retailer 9
-
€717 EUR
View
Most Expensive
B
Diamond Exchange Canada
1992904917 · Nov 5
€1,268 EUR
CA$1,967 CAD
View
9 more retailers have this diamond
Prices start from €327 EURSave up to €942 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
€327 EUR