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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 $16,556 CAD
As of November 4, 2026
Save $11,239 CAD (40%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $27,794 CAD 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 $16,556 to $27,794, a $11,239 spread on the same certified stone. MOH London lists it at $27,794. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $27,794 CAD|Low: $12,720 CAD|High: $28,203 CAD|Avg: $18,846 CAD|-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$12,720 CAD
Retailer 3$12,927 CAD
Retailer 4$14,177 CAD
Retailer 12$16,556 CAD
Retailer 11$17,993 CAD
Retailer 6$18,857 CAD
Retailer 13$19,047 CAD
Retailer 9$20,614 CAD
Retailer 2$20,982 CAD
Retailer 8$21,549 CAD
Retailer 10$22,140 CAD
Retailer 7$22,476 CAD
MOH London$27,794 CAD

33 data points across 13 retailers

19 retailers$16,556 CAD to $27,794 CAD

Retailer 1
-
$12,927 CAD
Price last confirmed 56 days ago
B+
Retailer 2
-
$16,556 CAD
View
Retailer 3
-
$17,844 CAD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
$17,993 CAD
View
B+
Retailer 5
-
$18,857 CAD
View
Retailer 6
-
$19,034 CAD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$19,047 CAD
View
Retailer 8
-
$19,331 CAD
View
Price last confirmed 29 days ago
Retailer 9
-
$19,331 CAD
View
Price last confirmed 43 days ago
Retailer 10
-
$20,075 CAD
View
Price last confirmed 38 days ago
Retailer 11
-
$20,075 CAD
View
Price last confirmed 43 days ago
B+
Retailer 12
-
$20,614 CAD
View
B+
Retailer 13
-
$20,982 CAD
View
B
Retailer 14
-
$21,549 CAD
View
B
Retailer 15
-
$22,140 CAD
View
B
Retailer 16
-
$22,476 CAD
View
Retailer 17
-
$25,279 CAD
View
Price last confirmed 42 days ago
Retailer 18
-
$25,279 CAD
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
DB46F1EEE · Nov 4
$27,794 CAD
£15,559 GBP
View
18 more retailers have this diamond
Prices start from $16,556 CADSave up to $11,239 CAD

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
$16,556 CAD