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Oval|Natural|GIA

1.50ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 1553391703

Certificate GIA 1553391703

Diamond specifications and retailer prices

From $8,239 SGD
$6,428 USD
As of October 26, 2026
Save $9,672 SGD (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $17,910 SGD at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct 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 1553391703. Listed at 12 retailers as of October 23, 2026, with prices from $8,239 to $17,910, a $9,672 spread on the same certified stone. NZ Jewellers lists it at $17,910. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553391703
Dimensions6.31 × 8.66 × 4.08 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.31 mm8.66 mm1.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553391703
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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: Oct 26
Current: $17,910 SGD|Low: $8,113 SGD|High: $17,910 SGD|Avg: $10,729 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
October 26, 2026
Retailer 14$8,113 SGD
Retailer 15$8,239 SGD
Retailer 12$8,694 SGD
Retailer 3$8,955 SGD
Retailer 4$9,382 SGD
Retailer 6$9,485 SGD
Retailer 8$9,701 SGD
Retailer 10$9,851 SGD
Retailer 9$10,032 SGD
Retailer 5$10,884 SGD
Retailer 13$11,194 SGD
Retailer 2$11,638 SGD
Retailer 7$12,150 SGD
Retailer 11$14,944 SGD
NZ Jewellers$17,910 SGD

25 data points across 15 retailers

12 retailers$8,239 SGD to $17,910 SGD

A
Retailer 1
-
$8,113 SGD
$6,330 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$8,239 SGD
$6,428 USD
View
A
Retailer 3
-
$8,694 SGD
$6,783 USD
View
A
Retailer 4
-
$9,382 SGD
$7,320 USD
View
A
Retailer 5
-
$9,701 SGD
$7,569 USD
View
A
Retailer 6
-
$9,851 SGD
$7,686 USD
View
A
Retailer 7
-
$10,032 SGD
£6,163 GBP
View
B+
Retailer 8
-
$10,884 SGD
$8,492 USD
View
B+
Retailer 9
-
$11,194 SGD
$8,734 USD
View
B+
Retailer 10
-
$11,638 SGD
€8,648 EUR
View
B+
Retailer 11
-
$14,944 SGD
£9,181 GBP
View
Most Expensive
B
NZ Jewellers
d4ecb5a0-d0a0-4a68-8ea7-528204860501 · Oct 23
$17,910 SGD
$13,974 USD
View
11 more retailers have this diamond
Prices start from $8,239 SGDSave up to $9,672 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
1.50ct Oval
$8,239 SGD