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Heart|Natural|IGI

0.91ct F SI2 Heart Natural Diamond

VG • F/SI2 • IGI 720508493

Shape and cutting style on the report: Heart brilliant

Certificate IGI 720508493

Diamond specifications and retailer prices

From £610 GBP
$818 USD
As of November 2, 2026
Save £1,464 GBP (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,074 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 720508493. Listed at 11 retailers as of October 30, 2026, with prices from £610 to £2,074, a £1,464 spread on the same certified stone. NZ Jewellers lists it at £2,074. 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

0.91
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle37.7°
OriginNatural
Grading LabIGI
CertificateIGI 720508493
Dimensions6.15 × 6.70 × 3.86 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Top View
6.15 mm6.70 mm0.91 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 720508493
Side View
Table 57.0%Crown 40.1°Girdle: STK-VTKPavilion 37.7°Culet: NoneDepth 57.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,074 GBP|Low: £559 GBP|High: £2,074 GBP|Avg: £970 GBP
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 2, 2026
Retailer 9£610 GBP
Retailer 10£661 GBP
Retailer 13£661 GBP
Retailer 11£669 GBP
Retailer 12£686 GBP
Retailer 4£753 GBP
Retailer 3£763 GBP
Retailer 8£772 GBP
Retailer 7£932 GBP
Retailer 5£982 GBP
Retailer 2£1,211 GBP
Retailer 6£1,711 GBP
NZ Jewellers£2,074 GBP

38 data points across 13 retailers

11 retailers£610 GBP to £2,074 GBP

A
Cheapest Retailer
-
£610 GBP
$818 USD
Final sale: no returns
A
Retailer 2
-
£661 GBP
$887 USD
View
A
Retailer 3
-
£661 GBP
$887 USD
View
A
Retailer 4
-
£669 GBP
$898 USD
View
A
Retailer 5
-
£686 GBP
$921 USD
View
B+
Retailer 6
-
£763 GBP
$1,024 USD
View
A
Retailer 7
-
£772 GBP
View
B+
Retailer 8
-
£932 GBP
€1,191 EUR
View
B+
Retailer 9
-
£1,211 GBP
View
B
Retailer 10
-
£1,711 GBP
View
Most Expensive
B
NZ Jewellers
e753f8af-beb1-4cd3-800e-df78791957e5 · Oct 30
£2,074 GBP
$2,783 USD
View
10 more retailers have this diamond
Prices start from £610 GBPSave up to £1,464 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
0.91ct Heart
£610 GBP