Oval|Natural|GIA

0.45ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 3545124521

Certificate GIA 3545124521

Diamond specifications and retailer prices

From $641 AUD
$450 USD
As of October 26, 2026
Save $488 AUD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,125 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.45ct natural oval diamond

This 0.45ct natural oval sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545124521. Listed at 14 retailers as of October 26, 2026, with a 76% 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

0.45
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545124521
Dimensions6.03 × 4.32 × 2.68 mm
L/W Ratio1.40
Top View
6.03 mm4.32 mm0.45 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545124521
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 62.1%

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 26
Current: $2,125 AUD|Low: $555 AUD|High: $2,125 AUD|Avg: $924 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
October 28, 2026
Retailer 6$555 AUD
Retailer 13$598 AUD
Retailer 3$619 AUD
Retailer 12$641 AUD
Retailer 7$720 AUD
Retailer 5$746 AUD
Retailer 4$824 AUD
Retailer 10$858 AUD
Retailer 8$861 AUD
Retailer 14$888 AUD
Retailer 9$1,003 AUD
Retailer 2$1,129 AUD
Retailer 11$1,282 AUD
NZ Jewellers$2,125 AUD

40 data points across 14 retailers

14 retailers$641 AUD to $1,129 AUD

Retailer 1
-
$555 AUD
$390 USD
Price last confirmed 7 days ago
Retailer 2
-
$598 AUD
$420 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$619 AUD
$435 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$641 AUD
$450 USD
View
B+
Retailer 5
-
$720 AUD
£398 GBP
View
B
Retailer 6
-
$746 AUD
$524 USD
View
Retailer 7
-
$824 AUD
$579 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$858 AUD
ZAR 9,740 ZAR
View
Price last confirmed 7 days ago
Retailer 9
-
$861 AUD
$605 USD
View
Price last confirmed 5 days ago
Retailer 10
-
$888 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$1,003 AUD
€671 EUR
View
B
Retailer 12
-
$1,129 AUD
£624 GBP
View
B
Retailer 13
-
$1,282 AUD
£709 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
11779e96-7465-40bd-b107-68c79f39ba90 · Oct 27
$2,125 AUD
$1,493 USD
View
Price under review
13 more retailers have this diamond
Prices start from $641 AUDSave up to $488 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+
0.45ct Oval
$641 AUD