Heart|Lab Grown|IGI

4.17ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG841664621

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG841664621

Diamond specifications and retailer prices

From £461 GBP
$618 USD
As of October 30, 2026
Save £2,151 GBP (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,523 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.17ct lab-grown heart diamond

This 4.17ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841664621 or 841664621. Listed at 12 retailers as of October 30, 2026, with a 466% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.17
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841664621
Dimensions9.69 × 10.94 × 6.58 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.69 mm10.94 mm4.17 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841664621
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 39°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,523 GBP|Low: £461 GBP|High: £3,523 GBP|Avg: £1,587 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10£461 GBP
Retailer 4£463 GBP
Retailer 2£1,146 GBP
Retailer 7£1,420 GBP
Retailer 6£1,422 GBP
Retailer 3£1,505 GBP
Retailer 9£1,725 GBP
Retailer 11£2,296 GBP
Retailer 5£2,497 GBP
Retailer 8£2,612 GBP
Brilliant Earth£3,523 GBP

21 data points across 11 retailers

12 retailers£461 GBP to £2,612 GBP

A
Cheapest Retailer
-
£461 GBP
$618 USD
A
Retailer 2
-
£463 GBP
View
A
Retailer 3
-
£1,146 GBP
A$2,362 AUD
View
B+
Retailer 4
-
£1,420 GBP
$1,902 USD
View
B+
Retailer 5
-
£1,422 GBP
$1,905 USD
View
B+
Retailer 6
-
£1,505 GBP
$2,016 USD
View
B+
Retailer 7
-
£1,725 GBP
$2,311 USD
View
B+
Retailer 8
-
£1,802 GBP
$2,415 USD
View
Retailer 9
-
£2,296 GBP
SGD 4,157 SGD
View
Price last confirmed 17 days ago
B
Retailer 10
-
£2,497 GBP
View
B
Retailer 11
-
£2,612 GBP
$3,500 USD
View
Most Expensive
Brilliant Earth
21712493A · Oct 30
£3,523 GBP
$4,720 USD
View
Price under review
11 more retailers have this diamond
Prices start from £461 GBPSave up to £2,151 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
4.17ct Heart
£461 GBP