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Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

ID • K/SI2 • GIA 2554859851

Certificate GIA 2554859851

Diamond specifications and retailer prices

From €10,542 EUR
As of November 4, 2026
Save €7,156 EUR (40%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €17,698 EUR at MOH London · As of November 4, 2026
View at MOH London

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 2554859851. Listed at 19 retailers as of November 4, 2026, with prices from €10,542 to €17,698, a €7,156 spread on the same certified stone. MOH London lists it at €17,698. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554859851
Dimensions10.66 × 7.43 × 4.67 mm
L/W Ratio1.43
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Crystal, Needle, Indented Natural
Top View
10.66 mm7.43 mm2.51 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554859851
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: €17,698 EUR|Low: €8,099 EUR|High: €17,959 EUR|Avg: €12,001 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5€8,099 EUR
Retailer 3€8,231 EUR
Retailer 4€9,027 EUR
Retailer 12€10,542 EUR
Retailer 11€11,457 EUR
Retailer 6€12,007 EUR
Retailer 13€12,128 EUR
Retailer 9€13,126 EUR
Retailer 2€13,361 EUR
Retailer 8€13,722 EUR
Retailer 10€14,098 EUR
Retailer 7€14,312 EUR
MOH London€17,698 EUR

33 data points across 13 retailers

19 retailers€10,542 EUR to €17,698 EUR

Retailer 1
-
€8,231 EUR
Price last confirmed 56 days ago
B+
Retailer 2
-
€10,542 EUR
View
Retailer 3
-
€11,362 EUR
View
Price last confirmed 29 days ago
B+
Retailer 4
-
€11,457 EUR
View
B+
Retailer 5
-
€12,007 EUR
View
Retailer 6
-
€12,120 EUR
View
Price last confirmed 38 days ago
B+
Retailer 7
-
€12,128 EUR
View
Retailer 8
-
€12,309 EUR
View
Price last confirmed 29 days ago
Retailer 9
-
€12,309 EUR
View
Price last confirmed 43 days ago
Retailer 10
-
€12,783 EUR
View
Price last confirmed 38 days ago
Retailer 11
-
€12,783 EUR
View
Price last confirmed 43 days ago
B+
Retailer 12
-
€13,126 EUR
View
B+
Retailer 13
-
€13,361 EUR
View
B
Retailer 14
-
€13,722 EUR
View
B
Retailer 15
-
€14,098 EUR
View
B
Retailer 16
-
€14,312 EUR
View
Retailer 17
-
€16,097 EUR
View
Price last confirmed 42 days ago
Retailer 18
-
€16,097 EUR
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
DB46F1EEE · Nov 4
€17,698 EUR
£15,559 GBP
View
18 more retailers have this diamond
Prices start from €10,542 EURSave up to €7,156 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+
2.51ct Oval
€10,542 EUR