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Oval|Natural|GIA

1.20ct M SI2 Oval Natural Diamond

M/SI2 • GIA 6512708641

Certificate GIA 6512708641

Diamond specifications and retailer prices

From £845 GBP
As of November 6, 2026
Save £374 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,219 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included) and certified by GIA 6512708641. Listed at 2 retailers as of November 6, 2026, with prices from £845 to £1,219, a £374 spread on the same certified stone. Yorxs lists it at £1,219. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
M
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6512708641
Dimensions8.28 × 5.94 × 3.79 mm
L/W Ratio1.39
Top View
8.28 mm5.94 mm1.20 ctM / SI2
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512708641
Side View
Table 59.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £845 GBP|Low: £578 GBP|High: £1,223 GBP|Avg: £959 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 4£578 GBP
Retailer 1£845 GBP
Retailer 3£1,012 GBP
Retailer 2£1,147 GBP
Yorxs£1,219 GBP

13 data points across 5 retailers

2 retailers£845 GBP to £1,219 GBP

B+
Cheapest Retailer
-
£845 GBP
Most Expensive
B
Yorxs
515278208 · Nov 6
£1,219 GBP
€1,554 EUR
View
1 more retailer has this diamond
Prices start from £845 GBPSave up to £374 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.

B+
1.20ct Oval
£845 GBP