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Oval|Natural|GIA

0.45ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 2556717746

Certificate GIA 2556717746

Diamond specifications and retailer prices

From $413 AUD
As of November 6, 2026
Save $918 AUD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,508 AUD at NZ Jewellers · As of October 6, 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 H 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 2556717746. Listed at 8 retailers as of November 4, 2026, with a 222% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556717746
Dimensions5.94 × 4.20 × 2.72 mm
L/W Ratio1.41
Girdle conditionSlightly Thick to Very Thick
Key to symbols
Cloud, Feather
Top View
5.94 mm4.20 mm0.45 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556717746
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.8%

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: Nov 6
Current: $413 AUD|Low: $413 AUD|High: $1,380 AUD|Avg: $764 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$413 AUD
Retailer 4$502 AUD
Retailer 6$611 AUD
Retailer 5$627 AUD
Retailer 2$1,016 AUD
Retailer 3$1,332 AUD

46 data points across 6 retailers

8 retailers$413 AUD to $1,332 AUD

A
Cheapest Retailer
-
$413 AUD
A
Retailer 2
-
$502 AUD
View
A
Retailer 3
-
$611 AUD
View
Retailer 4
-
$636 AUD
View
Price last confirmed 38 days ago
Retailer 5
-
$653 AUD
View
Price last confirmed 30 days ago
B
Retailer 6
-
$1,016 AUD
View
B
Retailer 7
-
$1,332 AUD
View
Most Expensive
NZ Jewellers
41ac46c4-aec4-4c20-b75d-b6eb2e1847e5 · Oct 6
$2,508 AUD
$1,723 USD
View
Price under review
7 more retailers have this diamond
Prices start from $413 AUDSave up to $918 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
0.45ct Oval
$413 AUD