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Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

EX • K/SI2 • GIA 2546456911

Certificate GIA 2546456911

Diamond specifications and retailer prices

From €10,384 EUR
As of November 4, 2026
Save €8,088 EUR (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €18,472 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 2546456911. Listed at 9 retailers as of November 4, 2026, with prices from €10,384 to €18,472, a €8,088 spread on the same certified stone. NZ Jewellers lists it at €18,472. 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
SymmetryVery Good
FluorescenceNone
Crown angle37.85°
Pavilion angle39.63°
OriginNatural
Grading LabGIA
CertificateGIA 2546456911
Dimensions11.99 × 7.17 × 4.42 mm
L/W Ratio1.67
Top View
11.99 mm7.17 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546456911
Side View
Table 59.0%Crown 37.85°GirdlePavilion 39.63°Culet: NoneDepth 61.6%

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 4
Current: €18,472 EUR|Low: €8,348 EUR|High: €18,472 EUR|Avg: €13,357 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4€8,348 EUR
Retailer 9€10,384 EUR
Retailer 8€11,823 EUR
Retailer 5€11,826 EUR
Retailer 10€12,007 EUR
Retailer 11€12,468 EUR
Retailer 2€13,033 EUR
Retailer 7€13,961 EUR
Retailer 12€14,228 EUR
Retailer 3€15,806 EUR
Retailer 6€17,263 EUR
NZ Jewellers€18,472 EUR

31 data points across 12 retailers

9 retailers€10,384 EUR to €18,472 EUR

A
Cheapest Retailer
-
€10,384 EUR
B+
Retailer 2
-
€11,823 EUR
View
B+
Retailer 3
-
€11,826 EUR
View
B+
Retailer 4
-
€12,007 EUR
View
B+
Retailer 5
-
€12,468 EUR
View
B+
Retailer 6
-
€13,033 EUR
View
B
Retailer 7
-
€13,961 EUR
View
B
Retailer 8
-
€17,263 EUR
View
Most Expensive
B
NZ Jewellers
4ec45a73-6ca0-4e56-a7e0-2fded4eaf716 · Nov 5
€18,472 EUR
$20,624 USD
View
8 more retailers have this diamond
Prices start from €10,384 EURSave up to €8,088 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
€10,384 EUR