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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6515090345

Certificate GIA 6515090345

Diamond specifications and retailer prices

From €738 EUR
As of November 6, 2026
Save €877 EUR (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,615 EUR at MOH London · As of November 4, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515090345. Listed at 21 retailers as of November 4, 2026, with prices from €738 to €1,615, a €877 spread on the same certified stone. MOH London lists it at €1,615. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.03°
Pavilion angle39.22°
OriginNatural
Grading LabGIA
CertificateGIA 6515090345
Dimensions6.18 × 4.48 × 2.77 mm
L/W Ratio1.38
Top View
6.18 mm4.48 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515090345
Side View
Table 58.0%Crown 40.03°Girdle: MED-THKPavilion 39.22°Culet: NoneDepth 61.9%

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: Nov 6
Current: €1,615 EUR|Low: €615 EUR|High: €1,637 EUR|Avg: €1,019 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9€738 EUR
Retailer 3€785 EUR
Retailer 7€788 EUR
Retailer 8€800 EUR
Retailer 4€875 EUR
Retailer 10€878 EUR
Retailer 6€940 EUR
Retailer 2€1,234 EUR
Retailer 11€1,317 EUR
Retailer 5€1,362 EUR
MOH London€1,615 EUR

33 data points across 11 retailers

21 retailers€738 EUR to €1,615 EUR

B+
Cheapest Retailer
-
€738 EUR
Final sale: no returns
B+
Retailer 2
-
€785 EUR
View
Retailer 3
-
€788 EUR
View
Price last confirmed 9 days ago
Retailer 4
-
€800 EUR
View
Price last confirmed 39 days ago
Retailer 5
-
€800 EUR
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€809 EUR
View
B+
Retailer 7
-
€875 EUR
View
B+
Retailer 8
-
€878 EUR
View
B+
Retailer 9
-
€889 EUR
View
Retailer 10
-
€923 EUR
View
Price last confirmed 38 days ago
B
Retailer 11
-
€923 EUR
View
B
Retailer 12
-
€940 EUR
View
B
Retailer 13
-
€940 EUR
View
B
Retailer 14
-
€940 EUR
View
B
Retailer 15
-
€976 EUR
View
B
Retailer 16
-
€1,234 EUR
View
Retailer 17
-
€1,317 EUR
View
Price last confirmed 37 days ago
B
Retailer 18
-
€1,362 EUR
View
Most Expensive
B
MOH London
3B8888A20 · Nov 4
€1,615 EUR
£1,420 GBP
View
18 more retailers have this diamond
Prices start from €738 EURSave up to €877 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
€738 EUR