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Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 2516454924

Certificate GIA 2516454924

Diamond specifications and retailer prices

From $9,347 SGD
$7,293 USD
As of October 28, 2026
Save $10,550 SGD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $19,897 SGD at NZ Jewellers · As of October 27, 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 2516454924. Listed at 16 retailers as of October 27, 2026, with prices from $9,347 to $19,897, a $10,550 spread on the same certified stone. NZ Jewellers lists it at $19,897. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.98°
Pavilion angle39.08°
OriginNatural
Grading LabGIA
CertificateGIA 2516454924
Dimensions8.72 × 6.35 × 4.16 mm
L/W Ratio1.37
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
8.72 mm6.35 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516454924
Side View
Table 63.0%Crown 36.98°Girdle: THK-VTKPavilion 39.08°Culet: NDepth 65.5%

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: Oct 28
Current: $11,066 SGD|Low: $9,150 SGD|High: $16,779 SGD|Avg: $11,410 SGD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10$9,347 SGD
Retailer 11$9,946 SGD
Retailer 9$9,982 SGD
Retailer 2$10,157 SGD
Retailer 4$10,601 SGD
Retailer 12$10,778 SGD
Retailer 1$11,066 SGD
Retailer 7$11,213 SGD
Retailer 3$11,447 SGD
Retailer 6$12,980 SGD
Retailer 8$14,357 SGD
Retailer 5$16,668 SGD

42 data points across 12 retailers

16 retailers$9,347 SGD to $19,897 SGD

A
Cheapest Retailer
-
$9,347 SGD
$7,293 USD
B+
Retailer 2
-
$9,946 SGD
$7,760 USD
View
B+
Retailer 3
-
$9,982 SGD
$7,788 USD
View
Final sale: no returns
B+
Retailer 4
-
$9,983 SGD
$7,789 USD
View
B+
Retailer 5
-
$10,157 SGD
$7,925 USD
View
B+
Retailer 6
-
$10,601 SGD
$8,271 USD
View
B+
Retailer 7
-
$10,778 SGD
$8,409 USD
View
B+
Retailer 8
-
$10,943 SGD
$8,538 USD
View
B+
Retailer 9
-
$11,066 SGD
£6,798 GBP
View
B+
Retailer 10
-
$11,213 SGD
A$13,459 AUD
View
B+
Retailer 11
-
$11,447 SGD
$8,931 USD
View
B
Retailer 12
-
$12,436 SGD
$9,703 USD
View
B
Retailer 13
-
$12,980 SGD
€9,645 EUR
View
B
Retailer 14
-
$14,357 SGD
ZAR 180,960 ZAR
View
Price last confirmed 7 days ago
B
Retailer 15
-
$16,668 SGD
£10,240 GBP
View
Most Expensive
B
NZ Jewellers
bc228933-8170-4d5c-84b9-6692ffa876f1 · Oct 27
$19,897 SGD
$15,524 USD
View
15 more retailers have this diamond
Prices start from $9,347 SGDSave up to $10,550 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
$9,347 SGD