CaratHunter
Plans
Oval|Natural|GIA

0.45ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 2556717746

Certificate GIA 2556717746

Diamond specifications and retailer prices

From £212 GBP
As of November 6, 2026
Save £471 GBP (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,287 GBP 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: £212 GBP|Low: £212 GBP|High: £708 GBP|Avg: £392 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1£212 GBP
Retailer 4£258 GBP
Retailer 6£314 GBP
Retailer 5£322 GBP
Retailer 2£521 GBP
Retailer 3£684 GBP

46 data points across 6 retailers

8 retailers£212 GBP to £684 GBP

A
Cheapest Retailer
-
£212 GBP
A
Retailer 2
-
£258 GBP
View
A
Retailer 3
-
£314 GBP
View
Retailer 4
-
£326 GBP
View
Price last confirmed 38 days ago
Retailer 5
-
£335 GBP
View
Price last confirmed 30 days ago
B
Retailer 6
-
£521 GBP
View
B
Retailer 7
-
£684 GBP
View
Most Expensive
NZ Jewellers
41ac46c4-aec4-4c20-b75d-b6eb2e1847e5 · Oct 6
£1,287 GBP
$1,723 USD
View
Price under review
7 more retailers have this diamond
Prices start from £212 GBPSave up to £471 GBP

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
£212 GBP