Oval|Natural|GIA

1.50ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1557028814

Certificate GIA 1557028814

Diamond specifications and retailer prices

From $10,478 AUD
$7,361 USD
As of October 29, 2026
Save $8,399 AUD (44%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $21,732 AUD at NZ Jewellers · As of September 29, 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 1557028814. Listed at 24 retailers as of October 29, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.45°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1557028814
Dimensions8.82 × 6.34 × 4.07 mm
L/W Ratio1.39
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
8.82 mm6.34 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557028814
Side View
Table 58.0%Crown 39.45°Girdle: THK-VTKPavilion 40.6°Culet: NoneDepth 64.2%

Caratlytics Score

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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 29
Current: $12,644 AUD|Low: $9,961 AUD|High: $18,876 AUD|Avg: $12,597 AUD|+1.0%
Retailer 1
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
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 3$10,478 AUD
Retailer 7$10,549 AUD
Retailer 19$10,710 AUD
Retailer 4$10,844 AUD
Retailer 14$10,866 AUD
Retailer 6$11,224 AUD
Retailer 11$11,266 AUD
Retailer 17$12,006 AUD
Retailer 2$12,495 AUD
Retailer 12$12,547 AUD
Retailer 9$12,588 AUD
Retailer 1$12,644 AUD
Retailer 18$12,703 AUD
Retailer 8$13,366 AUD
Retailer 21$13,366 AUD
Retailer 10$13,476 AUD
Retailer 13$13,646 AUD
Retailer 5$13,821 AUD
Retailer 16$13,973 AUD
Retailer 20$16,259 AUD
Retailer 15$18,876 AUD

24 data points across 21 retailers

24 retailers$10,478 AUD to $18,876 AUD

A
Cheapest Retailer
-
$10,478 AUD
$7,361 USD
A
Retailer 2
-
$10,549 AUD
$7,411 USD
View
A
Retailer 3
-
$10,710 AUD
$7,524 USD
View
B+
Retailer 4
-
$10,844 AUD
$7,618 USD
View
B+
Retailer 5
-
$11,224 AUD
$7,885 USD
View
B+
Retailer 6
-
$11,266 AUD
$7,915 USD
View
Final sale: no returns
Retailer 7
-
$11,772 AUD
$8,270 USD
View
Price last confirmed 28 days ago
Retailer 8
-
$11,954 AUD
$8,398 USD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$12,006 AUD
$8,435 USD
View
B+
Retailer 10
-
$12,495 AUD
$8,778 USD
View
B+
Retailer 11
-
$12,547 AUD
£6,941 GBP
View
B+
Retailer 12
-
$12,588 AUD
$8,844 USD
View
B+
Retailer 13
-
$12,644 AUD
£6,994 GBP
View
B+
Retailer 14
-
$12,703 AUD
View
B+
Retailer 15
-
$13,366 AUD
$9,390 USD
View
B+
Retailer 16
-
$13,366 AUD
$9,390 USD
View
B+
Retailer 17
-
$13,476 AUD
$9,468 USD
View
Retailer 18
-
$13,584 AUD
$9,543 USD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
$13,646 AUD
$9,587 USD
View
B
Retailer 20
-
$13,821 AUD
$9,710 USD
View
B+
Retailer 21
-
$13,973 AUD
€9,349 EUR
View
Retailer 22
-
$16,259 AUD
ZAR 184,534 ZAR
View
Price last confirmed 7 days ago
B
Retailer 23
-
$18,876 AUD
£10,442 GBP
View
Most Expensive
NZ Jewellers
0ae8fe05-5ac0-4661-bf0e-40c4806507ce · Sep 29
$21,732 AUD
$15,268 USD
View
Price last confirmed 30 days ago
23 more retailers have this diamond
Prices start from $10,478 AUDSave up to $8,399 AUD

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
$10,478 AUD