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Oval|Natural|IGI

1.31ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 774635679

Shape and cutting style on the report: Oval brilliant

Certificate IGI 774635679

Diamond specifications and retailer prices

From £1,200 GBP
As of November 5, 2026
Save £2,013 GBP (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,213 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural oval diamond

This 1.31ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 774635679. Listed at 15 retailers as of November 5, 2026, with prices from £1,200 to £3,213, a £2,013 spread on the same certified stone. NZ Jewellers lists it at £3,213. 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

1.31
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 774635679
Dimensions8.60 × 6.00 × 3.94 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Top View
8.60 mm6.00 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 774635679
Side View
Table 61.0%Crown 39°Girdle: MED-STKPavilion 41°Culet: NoneDepth 65.7%

Caratlytics Score

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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: £3,213 GBP|Low: £1,200 GBP|High: £3,430 GBP|Avg: £1,722 GBP|-6.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 13£1,200 GBP
Retailer 2£1,278 GBP
Retailer 3£1,317 GBP
Retailer 10£1,363 GBP
Retailer 4£1,369 GBP
Retailer 11£1,378 GBP
Retailer 5£1,406 GBP
Retailer 8£1,487 GBP
Retailer 12£1,520 GBP
Retailer 7£1,608 GBP
Retailer 6£1,789 GBP
Retailer 9£2,302 GBP
NZ Jewellers£3,213 GBP

35 data points across 13 retailers

15 retailers£1,200 GBP to £3,213 GBP

A
Cheapest Retailer
-
£1,200 GBP
A
Retailer 2
-
£1,278 GBP
View
B+
Retailer 3
-
£1,317 GBP
View
A
Retailer 4
-
£1,363 GBP
View
B+
Retailer 5
-
£1,369 GBP
View
A
Retailer 6
-
£1,378 GBP
View
Retailer 7
-
£1,406 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,476 GBP
View
A
Retailer 9
-
£1,487 GBP
View
B+
Retailer 10
-
£1,520 GBP
View
A
Retailer 11
-
£1,608 GBP
View
B+
Retailer 12
-
£1,789 GBP
View
B+
Retailer 13
-
£2,302 GBP
View
Retailer 14
-
£3,163 GBP
View
Price last confirmed 68 days ago
Most Expensive
B
NZ Jewellers
c08defea-25bc-47ff-9964-6d6a7936f7ab · Nov 5
£3,213 GBP
$4,301 USD
View
14 more retailers have this diamond
Prices start from £1,200 GBPSave up to £2,013 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
1.31ct Oval
£1,200 GBP