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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 $512 NZD
As of November 6, 2026
Save $1,138 NZD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,108 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $512 NZD|Low: $512 NZD|High: $1,710 NZD|Avg: $947 NZD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$512 NZD
Retailer 4$622 NZD
Retailer 6$758 NZD
Retailer 5$777 NZD
Retailer 2$1,259 NZD
Retailer 3$1,651 NZD

46 data points across 6 retailers

8 retailers$512 NZD to $1,651 NZD

A
Cheapest Retailer
-
$512 NZD
A
Retailer 2
-
$622 NZD
View
A
Retailer 3
-
$758 NZD
View
Retailer 4
-
$788 NZD
View
Price last confirmed 38 days ago
Retailer 5
-
$810 NZD
View
Price last confirmed 30 days ago
B
Retailer 6
-
$1,259 NZD
View
B
Retailer 7
-
$1,651 NZD
View
Most Expensive
NZ Jewellers
41ac46c4-aec4-4c20-b75d-b6eb2e1847e5 · Oct 6
$3,108 NZD
$1,723 USD
View
Price under review
7 more retailers have this diamond
Prices start from $512 NZDSave up to $1,138 NZD

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
$512 NZD