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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 $15,084 SGD
As of November 4, 2026
Save $10,240 SGD (40%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $25,324 SGD 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 $15,084 to $25,324, a $10,240 spread on the same certified stone. MOH London lists it at $25,324. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $25,324 SGD|Low: $11,590 SGD|High: $25,697 SGD|Avg: $17,172 SGD|-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$11,590 SGD
Retailer 3$11,778 SGD
Retailer 4$12,917 SGD
Retailer 12$15,084 SGD
Retailer 11$16,394 SGD
Retailer 6$17,181 SGD
Retailer 13$17,354 SGD
Retailer 9$18,782 SGD
Retailer 2$19,118 SGD
Retailer 8$19,634 SGD
Retailer 10$20,172 SGD
Retailer 7$20,479 SGD
MOH London$25,324 SGD

33 data points across 13 retailers

19 retailers$15,084 SGD to $25,324 SGD

Retailer 1
-
$11,778 SGD
Price last confirmed 56 days ago
B+
Retailer 2
-
$15,084 SGD
View
Retailer 3
-
$16,258 SGD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
$16,394 SGD
View
B+
Retailer 5
-
$17,181 SGD
View
Retailer 6
-
$17,343 SGD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$17,354 SGD
View
Retailer 8
-
$17,613 SGD
View
Price last confirmed 29 days ago
Retailer 9
-
$17,613 SGD
View
Price last confirmed 43 days ago
Retailer 10
-
$18,291 SGD
View
Price last confirmed 38 days ago
Retailer 11
-
$18,291 SGD
View
Price last confirmed 43 days ago
B+
Retailer 12
-
$18,782 SGD
View
B+
Retailer 13
-
$19,118 SGD
View
B
Retailer 14
-
$19,634 SGD
View
B
Retailer 15
-
$20,172 SGD
View
B
Retailer 16
-
$20,479 SGD
View
Retailer 17
-
$23,033 SGD
View
Price last confirmed 42 days ago
Retailer 18
-
$23,033 SGD
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
DB46F1EEE · Nov 4
$25,324 SGD
£15,559 GBP
View
18 more retailers have this diamond
Prices start from $15,084 SGDSave up to $10,240 SGD

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
$15,084 SGD