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Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 6551518379

Certificate GIA 6551518379

Diamond specifications and retailer prices

From €5,509 EUR
As of November 5, 2026
Save €2,969 EUR (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €8,478 EUR at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551518379. Listed at 10 retailers as of November 5, 2026, with prices from €5,509 to €8,478, a €2,969 spread on the same certified stone. The Diamond Guys lists it at €8,478. 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

2.51
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.54°
Pavilion angle39.08°
OriginNatural
Grading LabGIA
CertificateGIA 6551518379
Dimensions10.67 × 7.64 × 4.76 mm
L/W Ratio1.40
Culet sizeNone
Top View
10.67 mm7.64 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551518379
Side View
Table 60.0%Crown 39.54°Girdle: MED-THKPavilion 39.08°Culet: NoneDepth 62.4%

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 5
Current: €7,583 EUR|Low: €5,479 EUR|High: €9,970 EUR|Avg: €7,533 EUR|-9.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3€5,509 EUR
Retailer 8€5,967 EUR
Retailer 4€6,312 EUR
Retailer 10€6,529 EUR
Retailer 9€6,560 EUR
Retailer 6€7,436 EUR
Retailer 7€7,495 EUR
Retailer 1€7,583 EUR
Retailer 5€7,697 EUR
Retailer 2€9,970 EUR

31 data points across 10 retailers

10 retailers€5,509 EUR to €8,478 EUR

A
Cheapest Retailer
-
€5,509 EUR
A
Retailer 2
-
€5,967 EUR
View
A
Retailer 3
-
€6,312 EUR
View
A
Retailer 4
-
€6,529 EUR
View
A
Retailer 5
-
€6,560 EUR
View
A
Retailer 6
-
€7,436 EUR
View
A
Retailer 7
-
€7,495 EUR
View
A
Retailer 8
-
€7,583 EUR
View
A
Retailer 9
-
€7,697 EUR
View
Most Expensive
B+
The Diamond Guys
1963437036 · Nov 6
€8,478 EUR
$9,466 USD
View
9 more retailers have this diamond
Prices start from €5,509 EURSave up to €2,969 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
2.51ct Oval
€5,509 EUR