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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 1485696047

Certificate GIA 1485696047

Diamond specifications and retailer prices

From $3,492 AUD
As of November 4, 2026
Save $4,659 AUD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,150 AUD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1485696047. Listed at 13 retailers as of November 4, 2026, with prices from $3,492 to $8,150, a $4,659 spread on the same certified stone. NZ Jewellers lists it at $8,150. 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
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1485696047
Dimensions8.82 × 6.27 × 4.02 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Cert comments
Clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Needle, Natural
Top View
8.82 mm6.27 mm1.51 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1485696047
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.2%

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 4
Current: $8,150 AUD|Low: $3,641 AUD|High: $8,150 AUD|Avg: $4,855 AUD|+1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,641 AUD
Retailer 2$3,884 AUD
Retailer 5$3,898 AUD
Retailer 8$3,898 AUD
Retailer 7$4,047 AUD
Retailer 6$4,499 AUD
Retailer 3$4,758 AUD
Retailer 4$4,868 AUD
Retailer 10$6,236 AUD
NZ Jewellers$8,150 AUD

43 data points across 10 retailers

13 retailers$3,492 AUD to $8,150 AUD

B+
Cheapest Retailer
-
$3,492 AUD
B+
Retailer 2
-
$3,641 AUD
View
B+
Retailer 3
-
$3,842 AUD
View
B+
Retailer 4
-
$3,884 AUD
View
B+
Retailer 5
-
$3,898 AUD
View
Retailer 6
-
$3,898 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$3,898 AUD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
$4,047 AUD
View
B
Retailer 9
-
$4,499 AUD
View
Retailer 10
-
$4,499 AUD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$4,758 AUD
View
B
Retailer 12
-
$4,868 AUD
View
Most Expensive
B
NZ Jewellers
b0ea946a-fc9a-4b91-9e45-6ff914f80491 · Nov 5
$8,150 AUD
$5,600 USD
View
12 more retailers have this diamond
Prices start from $3,492 AUDSave up to $4,659 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
$3,492 AUD