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Heart|Natural|IGI

0.91ct H SI1 Heart Natural Diamond

VG • H/SI1 • IGI 345829257

Shape and cutting style on the report: Heart brilliant

Certificate IGI 345829257

Diamond specifications and retailer prices

From £914 GBP
$1,226 USD
As of November 2, 2026
Save £1,502 GBP (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,415 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 345829257. Listed at 15 retailers as of October 30, 2026, with prices from £914 to £2,415, a £1,502 spread on the same certified stone. NZ Jewellers lists it at £2,415. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 345829257
Dimensions6.22 × 6.75 × 3.74 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Top View
6.22 mm6.75 mm0.91 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 345829257
Side View
Table 62.5%CrownGirdle: MED-STKPavilionCulet: NoneDepth 55.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,415 GBP|Low: £838 GBP|High: £2,415 GBP|Avg: £1,325 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 3, 2026
Retailer 3£914 GBP
Retailer 11£990 GBP
Retailer 13£990 GBP
Retailer 4£1,007 GBP
Retailer 12£1,036 GBP
Retailer 5£1,073 GBP
Retailer 2£1,140 GBP
Retailer 10£1,142 GBP
Retailer 7£1,381 GBP
Retailer 9£1,450 GBP
Retailer 8£1,813 GBP
Retailer 6£1,905 GBP
NZ Jewellers£2,415 GBP

31 data points across 13 retailers

15 retailers£914 GBP to £2,415 GBP

B+
Cheapest Retailer
-
£914 GBP
$1,226 USD
Final sale: no returns
B+
Retailer 2
-
£918 GBP
$1,232 USD
View
B+
Retailer 3
-
£990 GBP
$1,329 USD
View
B+
Retailer 4
-
£990 GBP
$1,329 USD
View
B+
Retailer 5
-
£1,007 GBP
$1,352 USD
View
B+
Retailer 6
-
£1,036 GBP
$1,390 USD
View
B+
Retailer 7
-
£1,073 GBP
$1,440 USD
View
B+
Retailer 8
-
£1,091 GBP
$1,464 USD
View
B
Retailer 9
-
£1,140 GBP
View
B
Retailer 10
-
£1,142 GBP
$1,533 USD
View
B
Retailer 11
-
£1,381 GBP
€1,765 EUR
View
B
Retailer 12
-
£1,450 GBP
ZAR 31,442 ZAR
View
B
Retailer 13
-
£1,813 GBP
View
B
Retailer 14
-
£1,905 GBP
View
Most Expensive
C
NZ Jewellers
00aa2f1c-1b72-41f1-af45-e92d84b01d48 · Oct 30
£2,415 GBP
$3,241 USD
View
14 more retailers have this diamond
Prices start from £914 GBPSave up to £1,502 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+
0.91ct Heart
£914 GBP