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Heart|Natural|IGI

1.57ct I IF Heart Natural Diamond

VG • I/IF • IGI 801638160

Shape and cutting style on the report: Heart brilliant

Certificate IGI 801638160

Diamond specifications and retailer prices

From £3,784 GBP
As of November 4, 2026
Save £3,473 GBP (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,257 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.57ct natural heart diamond

This 1.57ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 801638160. Listed at 17 retailers as of November 4, 2026, with prices from £3,784 to £7,257, a £3,473 spread on the same certified stone. NZ Jewellers lists it at £7,257. 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

1.57
Carat
I
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 801638160
Dimensions7.01 × 8.19 × 4.87 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
7.01 mm8.19 mm1.57 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638160
Side View
Table 60.0%Crown 34.7°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 59.5%

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 4
Current: £7,257 GBP|Low: £3,834 GBP|High: £7,257 GBP|Avg: £5,059 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
November 5, 2026
Retailer 5£3,834 GBP
Retailer 4£4,004 GBP
Retailer 6£4,273 GBP
Retailer 9£4,339 GBP
Retailer 10£4,339 GBP
Retailer 12£4,339 GBP
Retailer 11£5,006 GBP
Retailer 3£5,181 GBP
Retailer 2£5,294 GBP
Retailer 7£6,375 GBP
Retailer 8£6,487 GBP
NZ Jewellers£7,257 GBP

31 data points across 12 retailers

17 retailers£3,784 GBP to £7,257 GBP

A
Cheapest Retailer
-
£3,784 GBP
A
Retailer 2
-
£3,815 GBP
View
A
Retailer 3
-
£3,834 GBP
View
A
Retailer 4
-
£4,004 GBP
View
Final sale: no returns
A
Retailer 5
-
£4,049 GBP
View
A
Retailer 6
-
£4,273 GBP
View
Retailer 7
-
£4,339 GBP
View
Price last confirmed 7 days ago
A
Retailer 8
-
£4,339 GBP
View
A
Retailer 9
-
£4,339 GBP
View
A
Retailer 10
-
£4,450 GBP
View
A
Retailer 11
-
£4,454 GBP
View
B+
Retailer 12
-
£5,006 GBP
View
Retailer 13
-
£5,006 GBP
View
Price last confirmed 37 days ago
B+
Retailer 14
-
£5,294 GBP
View
B
Retailer 15
-
£6,375 GBP
View
B
Retailer 16
-
£6,487 GBP
View
Most Expensive
B
NZ Jewellers
3c1b82b0-4700-445e-b719-cce1e9402fd6 · Nov 5
£7,257 GBP
$9,767 USD
View
16 more retailers have this diamond
Prices start from £3,784 GBPSave up to £3,473 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
1.57ct Heart
£3,784 GBP