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Oval|Natural|GIA

0.51ct L SI1 Oval Natural Diamond

EX • L/SI1 • GIA 5556501079

Certificate GIA 5556501079

Diamond specifications and retailer prices

From £224 GBP
As of November 6, 2026
Save £273 GBP (55%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £497 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556501079. Listed at 3 retailers as of November 2, 2026, with prices from £224 to £497, a £273 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

0.51
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5556501079
Dimensions6.43 × 4.42 × 2.86 mm
L/W Ratio1.45
Top View
6.43 mm4.42 mm0.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5556501079
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £224 GBP|Low: £224 GBP|High: £497 GBP|Avg: £358 GBP|-2.0%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£224 GBP
Retailer 2£379 GBP
Yorxs£497 GBP

45 data points across 3 retailers

3 retailers£224 GBP to £497 GBP

A
Cheapest Retailer
-
£224 GBP
B+
Retailer 2
-
£379 GBP
View
Most Expensive
B
Yorxs
B34D58BDE · Nov 2
£497 GBP
€634 EUR
View
2 more retailers have this diamond
Prices start from £224 GBPSave up to £273 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
£224 GBP