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Heart|Natural|IGI

1.70ct H IF Heart Natural Diamond

VG • H/IF • IGI 821674254

Shape and cutting style on the report: Heart brilliant

Certificate IGI 821674254

Diamond specifications and retailer prices

From £6,345 GBP
$8,501 USD
As of November 1, 2026
Save £5,934 GBP (48%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £12,279 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 821674254. Listed at 24 retailers as of October 30, 2026, with prices from £6,345 to £12,279, a £5,934 spread on the same certified stone. NZ Jewellers lists it at £12,279. 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

1.70
Carat
H
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 821674254
Dimensions7.39 × 8.16 × 4.86 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Top View
7.39 mm8.16 mm1.70 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 821674254
Side View
Table 60.0%Crown 36.2°Girdle: MED-THKPavilion 38.2°Culet: NoneDepth 59.6%

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 1
Current: £6,952 GBP|Low: £6,526 GBP|High: £10,354 GBP|Avg: £7,614 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3£6,528 GBP
Retailer 8£6,721 GBP
Retailer 7£6,776 GBP
Retailer 6£6,777 GBP
Retailer 1£6,952 GBP
Retailer 5£7,289 GBP
Retailer 4£9,019 GBP
Retailer 2£10,231 GBP

41 data points across 8 retailers

24 retailers£6,345 GBP to £12,279 GBP

B+
Cheapest Retailer
-
£6,345 GBP
$8,501 USD
B+
Retailer 2
-
£6,528 GBP
View
B+
Retailer 3
-
£6,721 GBP
$9,005 USD
View
B+
Retailer 4
-
£6,742 GBP
A$13,898 AUD
View
B+
Retailer 5
-
£6,776 GBP
$9,079 USD
View
Final sale: no returns
Retailer 6
-
£6,777 GBP
$9,080 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
£6,777 GBP
$9,080 USD
View
B+
Retailer 8
-
£6,952 GBP
View
B
Retailer 9
-
£7,289 GBP
€9,301 EUR
View
Retailer 10
-
£7,342 GBP
$9,837 USD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
£7,342 GBP
$9,837 USD
View
Retailer 12
-
£7,342 GBP
$9,837 USD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
£7,345 GBP
$9,841 USD
View
Retailer 14
-
£7,454 GBP
$9,988 USD
View
Price last confirmed 32 days ago
B+
Retailer 15
-
£7,454 GBP
$9,988 USD
View
B+
Retailer 16
-
£7,507 GBP
$10,059 USD
View
Retailer 17
-
£8,471 GBP
$11,350 USD
View
Price last confirmed 56 days ago
Retailer 18
-
£8,471 GBP
$11,350 USD
View
Price last confirmed 33 days ago
B
Retailer 19
-
£8,471 GBP
$11,350 USD
View
B
Retailer 20
-
£9,019 GBP
ZAR 195,229 ZAR
View
B
Retailer 21
-
£10,231 GBP
View
Retailer 22
-
£12,279 GBP
$16,452 USD
View
Price last confirmed 33 days ago
Retailer 23
-
£12,279 GBP
$16,452 USD
View
Price last confirmed 23 days ago
Most Expensive
B
NZ Jewellers
9fb10e00-b8d3-494f-aa84-02ae9f3d59dd · Oct 30
£12,279 GBP
$16,452 USD
View
23 more retailers have this diamond
Prices start from £6,345 GBPSave up to £5,934 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+
1.70ct Heart
£6,345 GBP