CaratHunter
Plans
Heart|Natural|IGI

1.31ct F VS1 Heart Natural Diamond

VG • F/VS1 • IGI 723525174

Shape and cutting style on the report: Heart brilliant

Certificate IGI 723525174

Diamond specifications and retailer prices

From £6,513 GBP
$8,718 USD
As of November 5, 2026
2 retailers carry this diamond
Most expensive: £6,513 GBP at Allurez
View at Allurez

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 723525174. Listed at 2 retailers as of November 5, 2026. 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

1.31
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle38.9°
OriginNatural
Grading LabIGI
CertificateIGI 723525174
Dimensions6.00 × 7.31 × 4.73 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Top View
6.00 mm7.31 mm1.31 ctF / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 723525174
Side View
Table 61.0%Crown 43.9°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 64.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,384 GBP|Low: £2,845 GBP|High: £5,413 GBP|Avg: £3,302 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 17, 2026
Retailer 9£2,845 GBP
Retailer 3£2,933 GBP
Retailer 8£2,985 GBP
Retailer 6£2,996 GBP
Retailer 2£3,290 GBP
Retailer 4£3,310 GBP
Retailer 5£3,423 GBP
Retailer 7£3,441 GBP
Retailer 1£5,384 GBP

8 data points across 9 retailers

2 retailers

Retailer 1
-
£5,384 GBP
Price last confirmed 19 days ago
Most Expensive
B
Allurez
5758743 · Nov 5
£6,513 GBP
$8,718 USD
View
1 more retailer has this diamond

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
1.31ct Heart
£6,513 GBP