CaratHunter
Plans
Heart|Natural|IGI

1.71ct D SI2 Heart Natural Diamond

VG • D/SI2 • IGI 799674857

Shape and cutting style on the report: Heart brilliant

Certificate IGI 799674857

Diamond specifications and retailer prices

From £2,873 GBP
$3,849 USD
As of November 2, 2026
Save £3,762 GBP (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £7,492 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.71ct natural heart diamond

This 1.71ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 799674857. Listed at 9 retailers as of October 29, 2026, with a 131% 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

1.71
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 799674857
Dimensions7.24 × 8.19 × 4.89 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Top View
7.24 mm8.19 mm1.71 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 799674857
Side View
Table 59.0%Crown 42.7°Girdle: MED-THKPavilion 39.1°Culet: NoneDepth 59.7%

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: £3,537 GBP|Low: £1,745 GBP|High: £9,766 GBP|Avg: £3,920 GBP|-63.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 12£1,745 GBP
Retailer 2£2,873 GBP
Retailer 1£3,537 GBP
Retailer 4£3,804 GBP
Retailer 3£3,883 GBP
Retailer 9£3,907 GBP
Retailer 7£4,135 GBP
Retailer 11£4,142 GBP
Retailer 5£4,221 GBP
Retailer 10£4,479 GBP
Retailer 6£5,169 GBP
Retailer 8£6,635 GBP

12 data points across 12 retailers

9 retailers£2,873 GBP to £6,635 GBP

A
Cheapest Retailer
-
£2,873 GBP
$3,849 USD
A
Retailer 2
-
£3,537 GBP
₹451,395 INR
View
A
Retailer 3
-
£3,907 GBP
$5,235 USD
View
B+
Retailer 4
-
£4,135 GBP
$5,540 USD
View
Final sale: no returns
A
Retailer 5
-
£4,221 GBP
View
Retailer 6
-
£4,479 GBP
$6,002 USD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
£5,169 GBP
$6,926 USD
View
B
Retailer 8
-
£6,635 GBP
View
Most Expensive
NZ Jewellers
58c0b2d4-3e9d-4ce7-b862-7fe8bf8c8556 · Sep 28
£7,492 GBP
$10,039 USD
View
Price last confirmed 35 days ago
8 more retailers have this diamond
Prices start from £2,873 GBPSave up to £3,762 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
1.71ct Heart
£2,873 GBP