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Heart|Lab Grown|IGI

3.72ct H SI1 Heart Lab Grown Diamond

ID • H/SI1 • IGI LG476157441

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG476157441

Diamond specifications and retailer prices

From £1,978 GBP
$2,650 USD
As of October 31, 2026
Save £12,148 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £14,126 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.72ct lab-grown heart diamond

This 3.72ct lab-grown heart sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476157441 or 476157441. Listed at 12 retailers as of October 29, 2026, with prices from £1,978 to £14,126, a £12,148 spread on the same certified stone. MOH London lists it at £14,126. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.72
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476157441
Dimensions10.75 × 9.32 × 6.21 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.75 mm9.32 mm3.72 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG476157441
Side View
Table 62.5%Crown 37°Girdle: MED-THKPavilion 40°Culet: NoneDepth 57.8%

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: £14,126 GBP|Low: £1,978 GBP|High: £14,238 GBP|Avg: £8,260 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 2£1,978 GBP
Retailer 9£6,653 GBP
Retailer 13£6,919 GBP
Retailer 3£7,451 GBP
Retailer 4£7,642 GBP
Retailer 10£7,717 GBP
Retailer 14£7,717 GBP
Retailer 5£7,775 GBP
Retailer 8£8,448 GBP
Retailer 12£8,679 GBP
Retailer 11£8,926 GBP
Retailer 7£9,901 GBP
Retailer 6£9,942 GBP
MOH London£14,126 GBP

37 data points across 14 retailers

12 retailers£1,978 GBP to £14,126 GBP

A
Cheapest Retailer
-
£1,978 GBP
$2,650 USD
B
Retailer 2
-
£6,653 GBP
$8,914 USD
View
B
Retailer 3
-
£6,919 GBP
$9,271 USD
View
B
Retailer 4
-
£7,451 GBP
$9,983 USD
View
Final sale: no returns
B
Retailer 5
-
£7,642 GBP
$10,240 USD
View
Retailer 6
-
£7,717 GBP
$10,340 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
£7,717 GBP
$10,340 USD
View
B
Retailer 8
-
£8,448 GBP
$11,319 USD
View
B
Retailer 9
-
£8,679 GBP
$11,629 USD
View
B
Retailer 10
-
£8,926 GBP
$11,960 USD
View
B
Retailer 11
-
£9,901 GBP
View
Most Expensive
B
MOH London
LG476157441 · Oct 29
£14,126 GBP
View
11 more retailers have this diamond
Prices start from £1,978 GBPSave up to £12,148 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
3.72ct Heart
£1,978 GBP