CaratHunter
Plans
Heart|Natural|IGI

0.40ct I VS1 Heart Natural Diamond

VG • I/VS1 • IGI 831668021

Shape and cutting style on the report: Heart brilliant

Certificate IGI 831668021

Diamond specifications and retailer prices

From £247 GBP
SGD 448 SGD
As of October 31, 2026
Save £360 GBP (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,009 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.4ct natural heart diamond

This 0.4ct natural heart sits in the sub-half-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 831668021. Listed at 13 retailers as of October 31, 2026, with a 146% 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

0.40
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39°
OriginNatural
Grading LabIGI
CertificateIGI 831668021
Dimensions4.51 × 5.06 × 3.00 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
4.51 mm5.06 mm0.40 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 831668021
Side View
Table 62.0%Crown 36.3°Girdle: MED-THKPavilion 39°Culet: NoneDepth 59.3%

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: Oct 31
Current: £1,009 GBP|Low: £247 GBP|High: £1,030 GBP|Avg: £433 GBP|-2.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11£247 GBP
Retailer 9£263 GBP
Retailer 4£284 GBP
Retailer 5£294 GBP
Retailer 8£332 GBP
Retailer 12£354 GBP
Retailer 10£385 GBP
Retailer 3£408 GBP
Retailer 13£425 GBP
Retailer 7£431 GBP
Retailer 6£523 GBP
Retailer 2£607 GBP
NZ Jewellers£1,009 GBP

20 data points across 13 retailers

13 retailers£247 GBP to £607 GBP

A
Cheapest Retailer
-
£247 GBP
SGD 448 SGD
A
Retailer 2
-
£263 GBP
$353 USD
View
A
Retailer 3
-
£284 GBP
$381 USD
View
A
Retailer 4
-
£294 GBP
$395 USD
View
A
Retailer 5
-
£332 GBP
View
B+
Retailer 6
-
£354 GBP
$475 USD
View
B+
Retailer 7
-
£385 GBP
$516 USD
View
B+
Retailer 8
-
£408 GBP
ZAR 8,847 ZAR
View
B+
Retailer 9
-
£425 GBP
$570 USD
View
B+
Retailer 10
-
£431 GBP
€551 EUR
View
B
Retailer 11
-
£523 GBP
View
B
Retailer 12
-
£607 GBP
View
Most Expensive
NZ Jewellers
054a5ae5-6bab-4718-94c5-b9ecc182bb64 · Oct 30
£1,009 GBP
$1,354 USD
View
Price under review
12 more retailers have this diamond
Prices start from £247 GBPSave up to £360 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
0.40ct Heart
£247 GBP