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Oval|Natural|GIA

1.45ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6542880639

Certificate GIA 6542880639

Diamond specifications and retailer prices

From $1,825 AUD
As of November 6, 2026
Save $4,160 AUD (70%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,264 AUD at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.45ct natural oval diamond

This 1.45ct natural oval sits in the one-and-a-quarter to one-and-a-half 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 6542880639. Listed at 15 retailers as of November 5, 2026, with a 228% 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

1.45
Carat
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542880639
Dimensions9.40 × 6.30 × 3.71 mm
L/W Ratio1.49
Top View
9.40 mm6.30 mm1.45 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542880639
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 58.9%

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 6
Current: $5,985 AUD|Low: $1,825 AUD|High: $6,824 AUD|Avg: $3,050 AUD|-12.3%
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
November 6, 2026
Retailer 13$1,825 AUD
Retailer 11$2,235 AUD
Retailer 2$2,412 AUD
Retailer 9$2,454 AUD
Retailer 5$2,484 AUD
Retailer 4$2,511 AUD
Retailer 10$2,554 AUD
Retailer 12$2,567 AUD
Retailer 6$2,652 AUD
Retailer 3$2,831 AUD
Retailer 8$2,994 AUD
Retailer 7$3,333 AUD
NZ Jewellers$5,985 AUD

35 data points across 13 retailers

15 retailers$1,825 AUD to $5,985 AUD

A
Cheapest Retailer
-
$1,825 AUD
A
Retailer 2
-
$2,235 AUD
View
A
Retailer 3
-
$2,412 AUD
View
A
Retailer 4
-
$2,454 AUD
View
B+
Retailer 5
-
$2,484 AUD
View
Retailer 6
-
$2,511 AUD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$2,554 AUD
View
B+
Retailer 8
-
$2,567 AUD
View
A
Retailer 9
-
$2,652 AUD
View
A
Retailer 10
-
$2,831 AUD
View
B+
Retailer 11
-
$2,994 AUD
View
B+
Retailer 12
-
$3,333 AUD
View
Retailer 13
-
$3,361 AUD
View
Price last confirmed 70 days ago
B
Retailer 14
-
$5,985 AUD
View
Most Expensive
NZ Jewellers
cf286401-5e2d-4941-a238-4453e597320e · Oct 14
$6,264 AUD
$4,304 USD
View
Price last confirmed 23 days ago
14 more retailers have this diamond
Prices start from $1,825 AUDSave up to $4,160 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
1.45ct Oval
$1,825 AUD