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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 2386505851

Certificate GIA 2386505851

Diamond specifications and retailer prices

From $3,532 SGD
As of November 4, 2026
Save $4,482 SGD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,014 SGD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2386505851. Listed at 18 retailers as of November 4, 2026, with prices from $3,532 to $8,014, a $4,482 spread on the same certified stone. NZ Jewellers lists it at $8,014. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2386505851
Dimensions8.31 × 6.36 × 4.20 mm
L/W Ratio1.31
Top View
8.31 mm6.36 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2386505851
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.0%

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: $8,014 SGD|Low: $3,094 SGD|High: $8,014 SGD|Avg: $4,965 SGD
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 17$3,532 SGD
Retailer 18$3,623 SGD
Retailer 15$3,626 SGD
Retailer 10$3,633 SGD
Retailer 6$3,685 SGD
Retailer 13$3,699 SGD
Retailer 5$4,037 SGD
Retailer 9$4,166 SGD
Retailer 3$4,187 SGD
Retailer 16$4,327 SGD
Retailer 8$4,564 SGD
Retailer 11$4,760 SGD
Retailer 4$4,809 SGD
Retailer 2$5,051 SGD
Retailer 12$5,613 SGD
Retailer 7$6,641 SGD
Retailer 14$7,670 SGD
NZ Jewellers$8,014 SGD

42 data points across 18 retailers

18 retailers$3,532 SGD to $8,014 SGD

A
Cheapest Retailer
-
$3,532 SGD
A
Retailer 2
-
$3,623 SGD
View
A
Retailer 3
-
$3,626 SGD
View
A
Retailer 4
-
$3,685 SGD
View
A
Retailer 5
-
$3,699 SGD
View
B+
Retailer 6
-
$4,037 SGD
View
B+
Retailer 7
-
$4,166 SGD
View
B+
Retailer 8
-
$4,187 SGD
View
Retailer 9
-
$4,270 SGD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,327 SGD
View
B+
Retailer 11
-
$4,564 SGD
View
B+
Retailer 12
-
$4,760 SGD
View
B+
Retailer 13
-
$4,809 SGD
View
B+
Retailer 14
-
$5,051 SGD
View
B+
Retailer 15
-
$5,613 SGD
View
B
Retailer 16
-
$6,641 SGD
View
B
Retailer 17
-
$7,670 SGD
View
Most Expensive
B
NZ Jewellers
b0a8d4f0-f7b8-4c21-81cf-4c788d294640 · Nov 5
$8,014 SGD
$6,253 USD
View
17 more retailers have this diamond
Prices start from $3,532 SGDSave up to $4,482 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
$3,532 SGD