Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 1535148182

Certificate GIA 1535148182

Diamond specifications and retailer prices

From $10,619 AUD
CA$10,336 CAD
As of October 30, 2026
Save $1,701 AUD (14%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,094 AUD at NZ Jewellers · As of October 17, 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 1535148182. Listed at 15 retailers as of October 30, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1535148182
Dimensions8.90 × 6.20 × 4.02 mm
L/W Ratio1.44
Culet sizeNone
Top View
8.90 mm6.20 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1535148182
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $20,094 AUD|Low: $9,423 AUD|High: $20,094 AUD|Avg: $11,948 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 20, 2026
Retailer 4$9,423 AUD
Retailer 3$9,492 AUD
Retailer 14$10,047 AUD
Retailer 5$10,222 AUD
Retailer 7$10,619 AUD
Retailer 16$10,700 AUD
Retailer 15$10,884 AUD
Retailer 8$11,044 AUD
Retailer 13$11,051 AUD
Retailer 2$11,384 AUD
Retailer 10$11,437 AUD
Retailer 9$12,320 AUD
Retailer 17$12,558 AUD
Retailer 6$12,623 AUD
Retailer 11$13,032 AUD
Retailer 12$16,833 AUD
NZ Jewellers$20,094 AUD

14 data points across 17 retailers

15 retailers$10,619 AUD to $12,320 AUD

Retailer 1
-
$9,423 AUD
$6,604 USD
Price last confirmed 14 days ago
Retailer 2
-
$9,492 AUD
$6,652 USD
View
Price last confirmed 13 days ago
Retailer 3
-
$10,047 AUD
$7,041 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$10,222 AUD
$7,164 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$10,619 AUD
CA$10,336 CAD
View
Retailer 6
-
$10,700 AUD
$7,499 USD
View
Price last confirmed 15 days ago
Retailer 7
-
$10,884 AUD
$7,628 USD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
$11,044 AUD
$7,740 USD
View
Retailer 9
-
$11,051 AUD
$7,745 USD
View
Price last confirmed 16 days ago
Retailer 10
-
$11,384 AUD
£6,282 GBP
View
Price last confirmed 13 days ago
Retailer 11
-
$11,437 AUD
£6,311 GBP
View
Price last confirmed 13 days ago
B
Retailer 12
-
$12,320 AUD
$8,634 USD
View
Retailer 13
-
$12,558 AUD
$8,801 USD
View
Price last confirmed 14 days ago
Retailer 14
-
$16,833 AUD
£9,289 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
94a047a7-113a-4925-bb3a-23610e73e6c3 · Oct 17
$20,094 AUD
$14,082 USD
View
Price last confirmed 15 days ago
14 more retailers have this diamond
Prices start from $10,619 AUDSave up to $1,701 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+
1.51ct Oval
$10,619 AUD