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Oval|Natural|GIA

2.51ct K SI2 Oval Natural Diamond

ID • K/SI2 • GIA 6532802181

Certificate GIA 6532802181

Diamond specifications and retailer prices

From $11,443 SGD
As of November 4, 2026
Save $5,806 SGD (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $20,702 SGD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

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 6532802181. Listed at 8 retailers as of November 1, 2026, with a 51% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6532802181
Dimensions10.33 × 7.62 × 4.72 mm
L/W Ratio1.36
Top View
10.33 mm7.62 mm2.51 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6532802181
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.0%

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: $11,443 SGD|Low: $11,136 SGD|High: $17,458 SGD|Avg: $13,632 SGD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 5$11,136 SGD
Retailer 1$11,443 SGD
Retailer 2$13,520 SGD
Retailer 4$14,658 SGD
Retailer 3$17,249 SGD

42 data points across 5 retailers

8 retailers$11,443 SGD to $17,249 SGD

Retailer 1
-
$11,425 SGD
Price last confirmed 29 days ago
A
Retailer 2
-
$11,443 SGD
View
Retailer 3
-
$12,378 SGD
View
Price last confirmed 29 days ago
Retailer 4
-
$12,567 SGD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$13,520 SGD
View
Retailer 6
-
$14,281 SGD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$17,249 SGD
View
Most Expensive
NZ Jewellers
5b0cd97f-91dc-4a41-b17e-b9c794b38073 · Sep 30
$20,702 SGD
$16,153 USD
View
Price last confirmed 37 days ago
7 more retailers have this diamond
Prices start from $11,443 SGDSave up to $5,806 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 Oval
$11,443 SGD