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Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 3565191044

Certificate GIA 3565191044

Diamond specifications and retailer prices

From $11,848 AUD
$8,324 USD
As of October 30, 2026
Save $6,138 AUD (34%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $21,472 AUD at NZ Jewellers · As of September 30, 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 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 3565191044. Listed at 15 retailers as of October 29, 2026, with a 52% 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

1.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565191044
Dimensions8.90 × 6.35 × 4.03 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
8.90 mm6.35 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3565191044
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.5%

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: Oct 30
Current: $12,048 AUD|Low: $10,410 AUD|High: $18,106 AUD|Avg: $13,278 AUD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8$10,442 AUD
Retailer 2$11,848 AUD
Retailer 4$11,945 AUD
Retailer 3$11,957 AUD
Retailer 1$12,048 AUD
Retailer 7$12,092 AUD
Retailer 10$12,149 AUD
Retailer 11$12,852 AUD
Retailer 6$14,006 AUD
Retailer 9$15,493 AUD
Retailer 5$17,987 AUD

36 data points across 11 retailers

15 retailers$11,848 AUD to $17,987 AUD

Retailer 1
-
$10,442 AUD
€6,987 EUR
Price last confirmed 6 days ago
B+
Retailer 2
-
$11,848 AUD
$8,324 USD
View
Final sale: no returns
B+
Retailer 3
-
$11,945 AUD
£6,608 GBP
View
Retailer 4
-
$11,957 AUD
$8,400 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$12,048 AUD
£6,665 GBP
View
B+
Retailer 6
-
$12,092 AUD
View
B+
Retailer 7
-
$12,149 AUD
$8,535 USD
View
Retailer 8
-
$12,838 AUD
$9,019 USD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$12,852 AUD
$9,029 USD
View
Retailer 10
-
$13,035 AUD
$9,158 USD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$14,006 AUD
€9,371 EUR
View
Retailer 12
-
$14,813 AUD
$10,407 USD
View
Price last confirmed 31 days ago
Retailer 13
-
$15,493 AUD
ZAR 175,837 ZAR
View
Price last confirmed 7 days ago
B
Retailer 14
-
$17,987 AUD
£9,950 GBP
View
Most Expensive
NZ Jewellers
6d00b19d-9ce4-48bc-b5a5-8bc65cbdbde3 · Sep 30
$21,472 AUD
$15,085 USD
View
Price last confirmed 30 days ago
14 more retailers have this diamond
Prices start from $11,848 AUDSave up to $6,138 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
$11,848 AUD