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Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

ID • F/SI2 • GIA 1537184523

Certificate GIA 1537184523

Diamond specifications and retailer prices

From $9,283 AUD
$6,506 USD
As of November 1, 2026
Save $10,371 AUD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,654 AUD at NZ Jewellers · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1537184523. Listed at 14 retailers as of November 1, 2026, with prices from $9,283 to $19,654, a $10,371 spread on the same certified stone. NZ Jewellers lists it at $19,654. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle41.63°
Pavilion angle37.07°
OriginNatural
Grading LabGIA
CertificateGIA 1537184523
Dimensions9.04 × 6.14 × 3.89 mm
L/W Ratio1.47
Girdle conditionExtremely Thick
Key to symbols
Crystal, Twinning Wisp, Feather, Indented Natural
Top View
9.04 mm6.14 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1537184523
Side View
Table 57.0%Crown 41.63°Girdle: ThickPavilion 37.07°Culet: NoneDepth 63.3%

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: $19,654 AUD|Low: $9,283 AUD|High: $20,584 AUD|Avg: $12,795 AUD|-4.5%
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
November 2, 2026
Retailer 4$9,283 AUD
Retailer 14$9,773 AUD
Retailer 6$9,827 AUD
Retailer 10$9,908 AUD
Retailer 3$10,646 AUD
Retailer 5$10,810 AUD
Retailer 7$11,089 AUD
Retailer 13$11,247 AUD
Retailer 2$11,902 AUD
Retailer 12$12,284 AUD
Retailer 11$12,695 AUD
Retailer 9$12,943 AUD
Retailer 8$16,377 AUD
NZ Jewellers$19,654 AUD

41 data points across 14 retailers

14 retailers$9,283 AUD to $19,654 AUD

A
Cheapest Retailer
-
$9,283 AUD
$6,506 USD
B+
Retailer 2
-
$9,773 AUD
CA$9,513 CAD
View
B+
Retailer 3
-
$9,827 AUD
$6,887 USD
View
B+
Retailer 4
-
$9,908 AUD
$6,944 USD
View
B+
Retailer 5
-
$10,646 AUD
$7,461 USD
View
B+
Retailer 6
-
$10,810 AUD
$7,576 USD
View
B+
Retailer 7
-
$11,089 AUD
£6,119 GBP
View
B+
Retailer 8
-
$11,247 AUD
$7,882 USD
View
B+
Retailer 9
-
$11,649 AUD
$8,164 USD
View
B+
Retailer 10
-
$11,902 AUD
€7,944 EUR
View
B
Retailer 11
-
$12,284 AUD
$8,609 USD
View
B+
Retailer 12
-
$12,695 AUD
$8,897 USD
View
B
Retailer 13
-
$16,377 AUD
£9,037 GBP
View
Most Expensive
B
NZ Jewellers
6b4413de-67c2-4282-a7dc-0c7212a8737d · Nov 2
$19,654 AUD
$13,774 USD
View
13 more retailers have this diamond
Prices start from $9,283 AUDSave up to $10,371 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
1.51ct Oval
$9,283 AUD