CaratHunter
Plans
Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 1513557476

Certificate GIA 1513557476

Diamond specifications and retailer prices

From $5,553 SGD
As of November 5, 2026
Save $6,336 SGD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,889 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1513557476. Listed at 16 retailers as of November 5, 2026, with prices from $5,553 to $11,889, a $6,336 spread on the same certified stone. NZ Jewellers lists it at $11,889. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1513557476
Dimensions9.31 × 6.62 × 3.81 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
9.31 mm6.62 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1513557476
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,889 SGD|Low: $5,498 SGD|High: $11,889 SGD|Avg: $7,620 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
November 6, 2026
Retailer 10$5,498 SGD
Retailer 12$5,617 SGD
Retailer 11$5,994 SGD
Retailer 3$6,440 SGD
Retailer 5$6,440 SGD
Retailer 13$6,440 SGD
Retailer 7$6,867 SGD
Retailer 2$6,901 SGD
Retailer 4$7,431 SGD
Retailer 6$7,569 SGD
Retailer 8$8,673 SGD
Retailer 9$11,292 SGD
NZ Jewellers$11,889 SGD

45 data points across 13 retailers

16 retailers$5,553 SGD to $11,889 SGD

Retailer 1
-
$5,498 SGD
Price last confirmed 16 days ago
B+
Retailer 2
-
$5,553 SGD
View
B+
Retailer 3
-
$5,617 SGD
View
B+
Retailer 4
-
$5,994 SGD
View
B
Retailer 5
-
$6,056 SGD
View
Retailer 6
-
$6,440 SGD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$6,440 SGD
View
B
Retailer 8
-
$6,440 SGD
View
B
Retailer 9
-
$6,785 SGD
View
B
Retailer 10
-
$6,867 SGD
View
B
Retailer 11
-
$6,901 SGD
View
B
Retailer 12
-
$7,431 SGD
View
B
Retailer 13
-
$7,569 SGD
View
B
Retailer 14
-
$8,673 SGD
View
C
Retailer 15
-
$11,292 SGD
View
Most Expensive
C
NZ Jewellers
8bc41d33-7895-43aa-8bd4-97a357c6a8eb · Nov 5
$11,889 SGD
$9,277 USD
View
15 more retailers have this diamond
Prices start from $5,553 SGDSave up to $6,336 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.

B+
1.51ct Oval
$5,553 SGD