Oval|Natural|GIA

0.45ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 3545124521

Certificate GIA 3545124521

Diamond specifications and retailer prices

From $390 USD
As of October 26, 2026
Save $510 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,493 USD 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 131% 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
Color
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 →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $1,493 USD|Low: $390 USD|High: $1,493 USD|Avg: $649 USD
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$390 USD
Retailer 13$420 USD
Retailer 3$435 USD
Retailer 12$450 USD
Retailer 7$505 USD
Retailer 5$524 USD
Retailer 4$579 USD
Retailer 10$603 USD
Retailer 8$605 USD
Retailer 14$624 USD
Retailer 9$705 USD
Retailer 2$793 USD
Retailer 11$900 USD
NZ Jewellers$1,493 USD

41 data points across 14 retailers

14 retailers$390 USD to $900 USD

A
Cheapest Retailer
-
$390 USD
Retailer 2
-
$420 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$435 USD
View
B+
Retailer 4
-
$450 USD
View
B+
Retailer 5
-
$505 USD
£398 GBP
View
B
Retailer 6
-
$524 USD
View
B
Retailer 7
-
$579 USD
View
B
Retailer 8
-
$603 USD
ZAR 9,740 ZAR
View
B
Retailer 9
-
$605 USD
View
Retailer 10
-
$624 USD
A$960 AUD
View
Price last confirmed 28 days ago
B
Retailer 11
-
$705 USD
€671 EUR
View
B
Retailer 12
-
$793 USD
£624 GBP
View
B
Retailer 13
-
$900 USD
£709 GBP
View
Most Expensive
NZ Jewellers
11779e96-7465-40bd-b107-68c79f39ba90 · Oct 27
$1,493 USD
View
Price under review
13 more retailers have this diamond
Prices start from $390 USDSave up to $510 USD

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
0.45ct Oval
$390 USD