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Oval|Natural|GIA

0.50ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 6551499565

Certificate GIA 6551499565

Diamond specifications and retailer prices

From £383 GBP
As of November 5, 2026
Save £357 GBP (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £740 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.5ct natural oval diamond

This 0.5ct natural oval sits in the half to three-quarter carat band, graded G 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 6551499565. Listed at 10 retailers as of November 5, 2026, with prices from £383 to £740, a £357 spread on the same certified stone. Frank Darling lists it at £740. 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

0.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.32°
Pavilion angle38.61°
OriginNatural
Grading LabGIA
CertificateGIA 6551499565
Dimensions6.68 × 4.42 × 2.66 mm
L/W Ratio1.51
Culet sizeNone
Top View
6.68 mm4.42 mm0.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551499565
Side View
Table 58.0%Crown 38.32°Girdle: THN-THKPavilion 38.61°Culet: NoneDepth 60.1%

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: Nov 5
Current: £740 GBP|Low: £380 GBP|High: £774 GBP|Avg: £568 GBP|-4.4%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3£383 GBP
Retailer 8£421 GBP
Retailer 6£456 GBP
Retailer 2£492 GBP
Retailer 5£548 GBP
Retailer 7£590 GBP
Retailer 4£594 GBP
Retailer 9£634 GBP
Frank Darling£740 GBP

44 data points across 9 retailers

10 retailers£383 GBP to £740 GBP

A
Cheapest Retailer
-
£383 GBP
A
Retailer 2
-
£421 GBP
View
A
Retailer 3
-
£456 GBP
View
A
Retailer 4
-
£492 GBP
View
B+
Retailer 5
-
£545 GBP
View
B+
Retailer 6
-
£548 GBP
View
B+
Retailer 7
-
£590 GBP
View
B+
Retailer 8
-
£594 GBP
View
B+
Retailer 9
-
£634 GBP
View
Most Expensive
B+
Frank Darling
2653257HK · Nov 6
£740 GBP
$990 USD
View
9 more retailers have this diamond
Prices start from £383 GBPSave up to £357 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
0.50ct Oval
£383 GBP