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Oval|Natural|GIA

1.51ct M SI1 Oval Natural Diamond

M/SI1 • GIA 5231782704

Certificate GIA 5231782704

Diamond specifications and retailer prices

From £1,406 GBP
As of November 6, 2026
Save £607 GBP (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,013 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 5231782704. Listed at 2 retailers as of November 6, 2026, with prices from £1,406 to £2,013, a £607 spread on the same certified stone. Yorxs lists it at £2,013. 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

1.51
Carat
M
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5231782704
Dimensions8.86 × 6.32 × 3.97 mm
L/W Ratio1.40
Top View
8.86 mm6.32 mm1.51 ctM / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5231782704
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.8%

Caratlytics Score

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

Last verified: Nov 6
Current: £1,406 GBP|Low: £1,325 GBP|High: £2,131 GBP|Avg: £1,698 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
November 6, 2026
Retailer 4£1,325 GBP
Retailer 1£1,406 GBP
Retailer 2£1,692 GBP
Yorxs£2,013 GBP
Retailer 3£2,056 GBP

15 data points across 5 retailers

2 retailers£1,406 GBP to £2,013 GBP

B+
Cheapest Retailer
-
£1,406 GBP
Most Expensive
B
Yorxs
516040235 · Nov 6
£2,013 GBP
€2,566 EUR
View
1 more retailer has this diamond
Prices start from £1,406 GBPSave up to £607 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+
1.51ct Oval
£1,406 GBP