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Oval|Natural|GIA

0.45ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 6552525260

Certificate GIA 6552525260

Diamond specifications and retailer prices

From £327 GBP
As of November 6, 2026
Save £170 GBP (34%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £497 GBP at Yorxs · As of November 3, 2026
View at Yorxs

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 6552525260. Listed at 10 retailers as of November 3, 2026, with prices from £327 to £497, a £170 spread on the same certified stone. Yorxs lists it at £497. 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
Crown angle36.96°
Pavilion angle39.22°
OriginNatural
Grading LabGIA
CertificateGIA 6552525260
Dimensions6.50 × 4.23 × 2.57 mm
L/W Ratio1.54
Culet sizeNone
Top View
6.50 mm4.23 mm0.45 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552525260
Side View
Table 57.0%Crown 36.96°Girdle: THN-THKPavilion 39.22°Culet: NoneDepth 60.7%

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: £394 GBP|Low: £235 GBP|High: £530 GBP|Avg: £427 GBP|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
November 6, 2026
Retailer 8£327 GBP
Retailer 2£357 GBP
Retailer 6£367 GBP
Retailer 4£385 GBP
Retailer 1£394 GBP
Retailer 3£426 GBP
Retailer 5£458 GBP
Retailer 7£490 GBP
Yorxs£497 GBP

43 data points across 9 retailers

10 retailers£327 GBP to £497 GBP

A
Cheapest Retailer
-
£327 GBP
B+
Retailer 2
-
£357 GBP
View
B+
Retailer 3
-
£367 GBP
View
B+
Retailer 4
-
£385 GBP
View
B+
Retailer 5
-
£394 GBP
View
B+
Retailer 6
-
£426 GBP
View
B
Retailer 7
-
£458 GBP
View
B
Retailer 8
-
£490 GBP
View
B
Retailer 9
-
£493 GBP
View
Most Expensive
B
Yorxs
532000774 · Nov 3
£497 GBP
€634 EUR
View
9 more retailers have this diamond
Prices start from £327 GBPSave up to £170 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
£327 GBP