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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5543344670

Certificate GIA 5543344670

Diamond specifications and retailer prices

From £212 GBP
As of November 5, 2026
Save £327 GBP (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £539 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543344670. Listed at 7 retailers as of November 5, 2026, with prices from £212 to £539, a £327 spread on the same certified stone. Frank Darling lists it at £539. 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

0.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle38.53°
Pavilion angle39.41°
OriginNatural
Grading LabGIA
CertificateGIA 5543344670
Dimensions6.75 × 4.32 × 2.69 mm
L/W Ratio1.56
Top View
6.75 mm4.32 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5543344670
Side View
Table 59.0%Crown 38.53°Girdle: MED-THKPavilion 39.41°Culet: NoneDepth 62.3%

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: £539 GBP|Low: £151 GBP|High: £567 GBP|Avg: £306 GBP|-5.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 9£151 GBP
Retailer 5£212 GBP
Retailer 2£229 GBP
Retailer 4£249 GBP
Retailer 3£275 GBP
Retailer 8£282 GBP
Retailer 6£330 GBP
Retailer 7£403 GBP
Frank Darling£539 GBP

17 data points across 9 retailers

7 retailers£212 GBP to £539 GBP

A
Cheapest Retailer
-
£212 GBP
A
Retailer 2
-
£229 GBP
View
A
Retailer 3
-
£249 GBP
View
A
Retailer 4
-
£275 GBP
View
A
Retailer 5
-
£282 GBP
View
A
Retailer 6
-
£330 GBP
View
Most Expensive
B+
Frank Darling
2572895HK · Nov 6
£539 GBP
$721 USD
View
6 more retailers have this diamond
Prices start from £212 GBPSave up to £327 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
0.51ct Oval
£212 GBP