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Round|Natural|GIA

2.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5546047512

Certificate GIA 5546047512

Diamond specifications and retailer prices

From $9,637 SGD
As of November 4, 2026
Save $7,468 SGD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,202 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

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 5546047512. Listed at 14 retailers as of November 4, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
OriginNatural
Grading LabGIA
CertificateGIA 5546047512
Dimensions8.60 × 8.65 × 5.41 mm
L/W Ratio1.01
Top View
8.60 mm8.65 mm2.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546047512
Side View
Table 59.0%CrownGirdlePavilionCulet: NDepth 62.7%

Caratlytics Score

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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: $11,300 SGD|Low: $9,637 SGD|High: $17,261 SGD|Avg: $12,587 SGD|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$9,637 SGD
Retailer 7$9,656 SGD
Retailer 8$10,883 SGD
Retailer 6$10,968 SGD
Retailer 1$11,300 SGD
Retailer 4$12,371 SGD
Retailer 2$13,344 SGD
Retailer 9$14,375 SGD
Retailer 3$17,106 SGD

37 data points across 9 retailers

14 retailers$9,637 SGD to $17,106 SGD

A
Cheapest Retailer
-
$9,637 SGD
A
Retailer 2
-
$9,656 SGD
View
A
Retailer 3
-
$10,883 SGD
View
Retailer 4
-
$10,921 SGD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$10,968 SGD
View
A
Retailer 6
-
$11,300 SGD
View
Retailer 7
-
$11,830 SGD
View
Price last confirmed 29 days ago
Retailer 8
-
$12,013 SGD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$12,371 SGD
View
A
Retailer 10
-
$13,344 SGD
View
Retailer 11
-
$13,651 SGD
View
Price last confirmed 38 days ago
Retailer 12
-
$14,375 SGD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
$17,106 SGD
View
Most Expensive
NZ Jewellers
29289aa4-f6d7-4c00-8cfe-0327b2998af7 · Sep 28
$18,202 SGD
$14,250 USD
View
Price last confirmed 39 days ago
13 more retailers have this diamond
Prices start from $9,637 SGDSave up to $7,468 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
$9,637 SGD