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Heart|Natural|IGI

1.81ct K IF Heart Natural Diamond

VG • K/IF • IGI 632436405

Shape and cutting style on the report: Heart brilliant

Certificate IGI 632436405

Diamond specifications and retailer prices

From £4,997 GBP
As of November 4, 2026
Save £2,988 GBP (37%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £9,582 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.81ct natural heart diamond

This 1.81ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 632436405. Listed at 11 retailers as of November 2, 2026, with a 60% 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

1.81
Carat
K
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 632436405
Dimensions7.01 × 8.28 × 5.20 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Top View
7.01 mm8.28 mm1.81 ctK / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 632436405
Side View
Table 59.0%Crown 39.3°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 62.8%

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 4
Current: £5,142 GBP|Low: £4,997 GBP|High: £8,081 GBP|Avg: £6,069 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6£4,997 GBP
Retailer 1£5,142 GBP
Retailer 5£5,286 GBP
Retailer 2£5,389 GBP
Retailer 3£6,990 GBP
Retailer 4£7,984 GBP

46 data points across 6 retailers

11 retailers£4,997 GBP to £7,984 GBP

B+
Cheapest Retailer
-
£4,997 GBP
B+
Retailer 2
-
£5,142 GBP
View
B
Retailer 3
-
£5,286 GBP
View
Retailer 4
-
£5,289 GBP
View
Price last confirmed 29 days ago
B+
Retailer 5
-
£5,389 GBP
View
Retailer 6
-
£5,730 GBP
View
Price last confirmed 29 days ago
Retailer 7
-
£5,818 GBP
View
Price last confirmed 36 days ago
Retailer 8
-
£6,610 GBP
View
Price last confirmed 28 days ago
B
Retailer 9
-
£6,990 GBP
View
B
Retailer 10
-
£7,984 GBP
View
Most Expensive
NZ Jewellers
a1136d72-9fe7-40ca-a38d-0e370fd78e22 · Sep 30
£9,582 GBP
$12,826 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from £4,997 GBPSave up to £2,988 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+
1.81ct Heart
£4,997 GBP