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Oval|Natural|GIA

1.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • GIA 6545992502

Certificate GIA 6545992502

Diamond specifications and retailer prices

From $2,198 SGD
As of November 6, 2026
Save $3,988 SGD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,639 SGD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545992502. Listed at 19 retailers as of November 5, 2026, with a 181% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545992502
Dimensions9.15 × 6.15 × 3.84 mm
L/W Ratio1.49
Top View
9.15 mm6.15 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545992502
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $6,186 SGD|Low: $2,198 SGD|High: $6,639 SGD|Avg: $3,538 SGD|-6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 3$2,198 SGD
Retailer 14$2,673 SGD
Retailer 5$2,744 SGD
Retailer 8$2,909 SGD
Retailer 2$2,948 SGD
Retailer 12$2,959 SGD
Retailer 10$3,058 SGD
Retailer 6$3,067 SGD
Retailer 16$3,095 SGD
Retailer 9$3,137 SGD
Retailer 13$3,216 SGD
Retailer 7$3,330 SGD
Retailer 4$3,414 SGD
Retailer 11$3,673 SGD
Retailer 15$5,170 SGD
NZ Jewellers$6,186 SGD

25 data points across 16 retailers

19 retailers$2,198 SGD to $6,186 SGD

A
Cheapest Retailer
-
$2,198 SGD
A
Retailer 2
-
$2,673 SGD
View
A
Retailer 3
-
$2,744 SGD
View
B+
Retailer 4
-
$2,909 SGD
View
A
Retailer 5
-
$2,948 SGD
View
A
Retailer 6
-
$2,959 SGD
View
B+
Retailer 7
-
$3,058 SGD
View
Retailer 8
-
$3,067 SGD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$3,095 SGD
View
A
Retailer 10
-
$3,137 SGD
View
Retailer 11
-
$3,176 SGD
View
Price last confirmed 23 days ago
A
Retailer 12
-
$3,216 SGD
View
B+
Retailer 13
-
$3,330 SGD
View
A
Retailer 14
-
$3,414 SGD
View
B+
Retailer 15
-
$3,673 SGD
View
Retailer 16
-
$4,288 SGD
View
Price last confirmed 66 days ago
B+
Retailer 17
-
$5,170 SGD
View
B
Retailer 18
-
$6,186 SGD
View
Most Expensive
NZ Jewellers
1868feef-2f90-41e8-bedb-bb8eeaf51541 · Oct 14
$6,639 SGD
$5,180 USD
View
Price last confirmed 23 days ago
18 more retailers have this diamond
Prices start from $2,198 SGDSave up to $3,988 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
1.51ct Oval
$2,198 SGD