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Heart|Natural|IGI

1.33ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 762535038

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762535038

Diamond specifications and retailer prices

From £1,061 GBP
As of November 6, 2026
Save £959 GBP (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,906 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.33ct natural heart diamond

This 1.33ct natural heart 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 762535038. Listed at 14 retailers as of November 4, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.33
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.1°
Pavilion angle37°
OriginNatural
Grading LabIGI
CertificateIGI 762535038
Dimensions6.64 × 7.74 × 4.46 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Top View
6.64 mm7.74 mm1.33 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762535038
Side View
Table 58.0%Crown 36.1°Girdle: MED-THKPavilion 37°Culet: NoneDepth 57.6%

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 6
Current: £1,061 GBP|Low: £1,061 GBP|High: £2,112 GBP|Avg: £1,333 GBP|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£1,061 GBP
Retailer 6£1,072 GBP
Retailer 9£1,191 GBP
Retailer 7£1,195 GBP
Retailer 8£1,209 GBP
Retailer 2£1,246 GBP
Retailer 3£1,286 GBP
Retailer 4£1,411 GBP
Retailer 5£2,019 GBP

45 data points across 9 retailers

14 retailers£1,061 GBP to £2,019 GBP

A
Cheapest Retailer
-
£1,061 GBP
A
Retailer 2
-
£1,072 GBP
View
Retailer 3
-
£1,191 GBP
View
Price last confirmed 36 days ago
Retailer 4
-
£1,191 GBP
View
Price last confirmed 21 days ago
B+
Retailer 5
-
£1,195 GBP
View
B+
Retailer 6
-
£1,209 GBP
View
Retailer 7
-
£1,246 GBP
View
Price last confirmed 36 days ago
B+
Retailer 8
-
£1,246 GBP
View
A
Retailer 9
-
£1,286 GBP
View
Retailer 10
-
£1,375 GBP
View
Price last confirmed 61 days ago
Retailer 11
-
£1,375 GBP
View
Price last confirmed 38 days ago
A
Retailer 12
-
£1,411 GBP
View
B+
Retailer 13
-
£2,019 GBP
View
Most Expensive
NZ Jewellers
3ee6d573-22e3-4108-82ac-9556497727e7 · Sep 30
£2,906 GBP
$3,889 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from £1,061 GBPSave up to £959 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
1.33ct Heart
£1,061 GBP