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Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 2538516298

Certificate GIA 2538516298

Diamond specifications and retailer prices

From $9,426 SGD
As of November 1, 2026
Save $11,720 SGD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $21,146 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2538516298. Listed at 15 retailers as of November 1, 2026, with prices from $9,426 to $21,146, a $11,720 spread on the same certified stone. NZ Jewellers lists it at $21,146. 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

1.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.36°
Pavilion angle39.16°
OriginNatural
Grading LabGIA
CertificateGIA 2538516298
Dimensions8.49 × 6.25 × 4.17 mm
L/W Ratio1.36
Top View
8.49 mm6.25 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2538516298
Side View
Table 57.0%Crown 41.36°Girdle: ThickPavilion 39.16°Culet: NoneDepth 66.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $13,737 SGD|Low: $9,426 SGD|High: $17,832 SGD|Avg: $12,606 SGD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$9,426 SGD
Retailer 9$9,899 SGD
Retailer 10$10,516 SGD
Retailer 11$10,758 SGD
Retailer 4$11,624 SGD
Retailer 2$11,631 SGD
Retailer 8$11,683 SGD
Retailer 3$13,216 SGD
Retailer 1$13,737 SGD
Retailer 5$15,425 SGD
Retailer 6$17,573 SGD

46 data points across 11 retailers

15 retailers$9,426 SGD to $21,146 SGD

A
Cheapest Retailer
-
$9,426 SGD
Retailer 2
-
$9,899 SGD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
$10,308 SGD
View
B+
Retailer 4
-
$10,516 SGD
View
Retailer 5
-
$10,573 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$10,758 SGD
View
B+
Retailer 7
-
$11,454 SGD
View
B+
Retailer 8
-
$11,624 SGD
View
B+
Retailer 9
-
$11,631 SGD
View
Retailer 10
-
$11,683 SGD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$13,216 SGD
View
B+
Retailer 12
-
$13,737 SGD
View
B
Retailer 13
-
$15,425 SGD
View
B
Retailer 14
-
$17,573 SGD
View
Most Expensive
B
NZ Jewellers
bfcda0e1-43b7-44b5-b715-b7633484abd4 · Nov 5
$21,146 SGD
$16,500 USD
View
14 more retailers have this diamond
Prices start from $9,426 SGDSave up to $11,720 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
$9,426 SGD