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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

GD • I/SI2 • GIA 6501279124

Certificate GIA 6501279124

Diamond specifications and retailer prices

From €590 EUR
$659 USD
As of October 31, 2026
Save €813 EUR (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,403 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6501279124. Listed at 23 retailers as of October 29, 2026, with prices from €590 to €1,403, a €813 spread on the same certified stone. MOH London lists it at €1,403. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6501279124
Dimensions6.67 × 4.44 × 2.74 mm
L/W Ratio1.50
Top View
6.67 mm4.44 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6501279124
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €1,403 EUR|Low: €536 EUR|High: €1,412 EUR|Avg: €930 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5€590 EUR
Retailer 4€689 EUR
Retailer 6€711 EUR
Retailer 8€875 EUR
Retailer 2€917 EUR
Retailer 7€1,064 EUR
Retailer 3€1,076 EUR
Retailer 9€1,146 EUR
MOH London€1,403 EUR

41 data points across 9 retailers

23 retailers€590 EUR to €1,403 EUR

B+
Cheapest Retailer
-
€590 EUR
$659 USD
Final sale: no returns
B
Retailer 2
-
€635 EUR
$709 USD
View
B
Retailer 3
-
€689 EUR
$770 USD
View
B
Retailer 4
-
€690 EUR
$771 USD
View
B
Retailer 5
-
€690 EUR
$771 USD
View
B
Retailer 6
-
€695 EUR
$776 USD
View
B
Retailer 7
-
€700 EUR
$782 USD
View
B
Retailer 8
-
€711 EUR
$794 USD
View
B
Retailer 9
-
€716 EUR
$800 USD
View
B
Retailer 10
-
€796 EUR
$889 USD
View
B
Retailer 11
-
€850 EUR
$950 USD
View
B
Retailer 12
-
€850 EUR
$950 USD
View
B
Retailer 13
-
€851 EUR
$951 USD
View
B
Retailer 14
-
€875 EUR
$978 USD
View
B
Retailer 15
-
€877 EUR
$980 USD
View
B
Retailer 16
-
€917 EUR
£807 GBP
View
C
Retailer 17
-
€934 EUR
$1,044 USD
View
C
Retailer 18
-
€1,064 EUR
A$1,828 AUD
View
C
Retailer 19
-
€1,071 EUR
$1,196 USD
View
C
Retailer 20
-
€1,076 EUR
View
C
Retailer 21
-
€1,226 EUR
CA$1,903 CAD
View
Most Expensive
C
MOH London
E1ED5DAB9 · Oct 29
€1,403 EUR
£1,234 GBP
View
21 more retailers have this diamond
Prices start from €590 EURSave up to €813 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.

B+
0.51ct Oval
€590 EUR