Round|Natural|IGI

1.36ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 768663727

Shape and cutting style on the report: Round brilliant

Certificate IGI 768663727

Diamond specifications and retailer prices

From £1,299 GBP
As of November 4, 2026
Save £1,230 GBP (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,608 GBP at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1.36ct natural round diamond

This 1.36ct natural round 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 top-tier cut grade and certified by IGI 768663727. Listed at 16 retailers as of November 2, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.36
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 768663727
Dimensions6.98 × 7.02 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.98 mm7.02 mm1.36 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 768663727
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,365 GBP|Low: £1,299 GBP|High: £2,623 GBP|Avg: £1,674 GBP|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£1,299 GBP
Retailer 5£1,308 GBP
Retailer 1£1,365 GBP
Retailer 8£1,374 GBP
Retailer 2£1,557 GBP
Retailer 3£1,741 GBP
Retailer 6£1,941 GBP
Retailer 7£2,529 GBP

34 data points across 8 retailers

16 retailers£1,299 GBP to £2,529 GBP

A
Cheapest Retailer
-
£1,299 GBP
A
Retailer 2
-
£1,308 GBP
View
A
Retailer 3
-
£1,365 GBP
View
A
Retailer 4
-
£1,374 GBP
View
Retailer 5
-
£1,444 GBP
View
Price last confirmed 44 days ago
Retailer 6
-
£1,479 GBP
View
Price last confirmed 30 days ago
Retailer 7
-
£1,479 GBP
View
Price last confirmed 25 days ago
Retailer 8
-
£1,510 GBP
View
Price last confirmed 38 days ago
A
Retailer 9
-
£1,557 GBP
View
Retailer 10
-
£1,667 GBP
View
Price last confirmed 45 days ago
Retailer 11
-
£1,707 GBP
View
Price last confirmed 28 days ago
A
Retailer 12
-
£1,741 GBP
View
A
Retailer 13
-
£1,941 GBP
View
B+
Retailer 14
-
£2,529 GBP
View
Retailer 15
-
£3,523 GBP
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
c1383529-29f5-48e1-9cc6-f6b5e9deadc1 · Oct 6
£3,608 GBP
$4,856 USD
View
Price last confirmed 31 days ago
15 more retailers have this diamond
Prices start from £1,299 GBPSave up to £1,230 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
1.36ct Round
£1,299 GBP