Oval|Natural|GIA

1.50ct F SI1 Oval Natural Diamond

VG • F/SI1 • GIA 1428798393

Certificate GIA 1428798393

Diamond specifications and retailer prices

From $11,579 AUD
$8,115 USD
As of November 1, 2026
Save $9,445 AUD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $21,024 AUD at NZ Jewellers · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428798393. Listed at 17 retailers as of November 1, 2026, with prices from $11,579 to $21,024, a $9,445 spread on the same certified stone. NZ Jewellers lists it at $21,024. 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

1.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1428798393
Dimensions9.23 × 6.16 × 3.90 mm
L/W Ratio1.50
Top View
9.23 mm6.16 mm1.50 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1428798393
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

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 1
Current: $21,024 AUD|Low: $11,579 AUD|High: $21,024 AUD|Avg: $15,244 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$11,579 AUD
Retailer 12$12,521 AUD
Retailer 11$12,719 AUD
Retailer 4$13,665 AUD
Retailer 5$13,794 AUD
Retailer 8$13,860 AUD
Retailer 10$13,875 AUD
Retailer 2$15,126 AUD
Retailer 3$15,767 AUD
Retailer 7$18,531 AUD
Retailer 6$19,700 AUD
NZ Jewellers$21,024 AUD

44 data points across 12 retailers

17 retailers$11,579 AUD to $21,024 AUD

B+
Cheapest Retailer
-
$11,579 AUD
$8,115 USD
B+
Retailer 2
-
$11,810 AUD
$8,277 USD
View
B+
Retailer 3
-
$12,521 AUD
$8,775 USD
View
B+
Retailer 4
-
$12,614 AUD
$8,840 USD
View
B+
Retailer 5
-
$12,719 AUD
$8,914 USD
View
B
Retailer 6
-
$13,665 AUD
$9,577 USD
View
B+
Retailer 7
-
$13,794 AUD
£7,612 GBP
View
Retailer 8
-
$13,860 AUD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$13,875 AUD
$9,724 USD
View
B
Retailer 10
-
$14,883 AUD
$10,430 USD
View
B
Retailer 11
-
$14,883 AUD
$10,430 USD
View
B
Retailer 12
-
$15,126 AUD
€10,096 EUR
View
B
Retailer 13
-
$15,382 AUD
$10,780 USD
View
B
Retailer 14
-
$15,767 AUD
$11,050 USD
View
B
Retailer 15
-
$18,531 AUD
ZAR 209,809 ZAR
View
B
Retailer 16
-
$19,700 AUD
£10,871 GBP
View
Most Expensive
B
NZ Jewellers
b2927d36-a296-4b92-9ed9-890fce067f59 · Nov 2
$21,024 AUD
$14,734 USD
View
16 more retailers have this diamond
Prices start from $11,579 AUDSave up to $9,445 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.

B+
1.50ct Oval
$11,579 AUD