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2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2556787346

Certificate GIA 2556787346

Diamond specifications and retailer prices

From $14,575 SGD
As of November 4, 2026
Save $11,240 SGD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $25,815 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556787346. Listed at 10 retailers as of November 4, 2026, with prices from $14,575 to $25,815, a $11,240 spread on the same certified stone. MOH London lists it at $25,815. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556787346
Dimensions8.60 × 5.41 × 5.41 mm
L/W Ratio1.59
Culet sizeNone
Top View
8.60 mm5.41 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556787346
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.6%

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 4
Current: $25,815 SGD|Low: $13,920 SGD|High: $26,196 SGD|Avg: $17,650 SGD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$13,920 SGD
Retailer 5$14,575 SGD
Retailer 11$14,976 SGD
Retailer 9$15,379 SGD
Retailer 8$16,574 SGD
Retailer 2$17,392 SGD
Retailer 7$17,756 SGD
Retailer 10$17,955 SGD
Retailer 6$19,822 SGD
Retailer 4$19,930 SGD
MOH London$25,815 SGD

33 data points across 11 retailers

10 retailers$14,575 SGD to $25,815 SGD

A
Cheapest Retailer
-
$14,575 SGD
A
Retailer 2
-
$15,379 SGD
View
Retailer 3
-
$16,574 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$17,247 SGD
View
B+
Retailer 5
-
$17,392 SGD
View
B+
Retailer 6
-
$17,756 SGD
View
B+
Retailer 7
-
$17,955 SGD
View
B+
Retailer 8
-
$19,822 SGD
View
B+
Retailer 9
-
$19,930 SGD
View
Most Expensive
B
MOH London
44FDDC741 · Nov 4
$25,815 SGD
£15,914 GBP
View
9 more retailers have this diamond
Prices start from $14,575 SGDSave up to $11,240 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.

A
2.51ct Round
$14,575 SGD