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Heart|Lab Grown|IGI

3.00ct G SI1 Heart Lab Grown Diamond

ID • G/SI1 • IGI LG508156284

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG508156284

Diamond specifications and retailer prices

From £415 GBP
As of November 6, 2026
Save £1,820 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,235 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 3ct lab-grown heart diamond

This 3ct lab-grown heart sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG508156284 or 508156284. Listed at 14 retailers as of November 3, 2026, with prices from £415 to £2,235, a £1,820 spread on the same certified stone. MOH London lists it at £2,235. 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

3.00
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle42.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156284
Dimensions9.78 × 8.57 × 6.01 mm
L/W Ratio1.14
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
9.78 mm8.57 mm3.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508156284
Side View
Table 58.5%Crown 42.6°Girdle: STK-VTKPavilion 42.7°Culet: NoneDepth 61.5%

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 6
Current: £2,235 GBP|Low: £399 GBP|High: £2,262 GBP|Avg: £959 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£415 GBP
Retailer 4£465 GBP
Retailer 12£465 GBP
Retailer 9£515 GBP
Retailer 5£616 GBP
Retailer 3£720 GBP
Retailer 2£795 GBP
Retailer 11£795 GBP
Retailer 6£1,328 GBP
Retailer 10£1,355 GBP
Retailer 8£1,808 GBP
MOH London£2,235 GBP

45 data points across 12 retailers

14 retailers£415 GBP to £2,235 GBP

A
Cheapest Retailer
-
£415 GBP
A
Retailer 2
-
£465 GBP
View
Final sale: no returns
A
Retailer 3
-
£465 GBP
View
A
Retailer 4
-
£515 GBP
View
Retailer 5
-
£515 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£616 GBP
View
A
Retailer 7
-
£720 GBP
View
B+
Retailer 8
-
£795 GBP
View
A
Retailer 9
-
£795 GBP
View
B+
Retailer 10
-
£1,328 GBP
View
B
Retailer 11
-
£1,355 GBP
View
B
Retailer 12
-
£1,635 GBP
View
B
Retailer 13
-
£1,808 GBP
View
Most Expensive
B
MOH London
LG508156284 · Nov 3
£2,235 GBP
View
13 more retailers have this diamond
Prices start from £415 GBPSave up to £1,820 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
3.00ct Heart
£415 GBP