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Heart|Lab Grown|IGI

0.45ct D SI1 Heart Lab Grown Diamond

VG • D/SI1 • IGI LG846656504

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846656504

Diamond specifications and retailer prices

From £86 GBP
HK$900 HKD
As of October 30, 2026
Save £452 GBP (84%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £538 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.45ct lab-grown heart diamond

This 0.45ct lab-grown heart sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG846656504 or 846656504. Listed at 7 retailers as of October 26, 2026, with prices from £86 to £538, a £452 spread on the same certified stone. MOH London lists it at £538. 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

0.45
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846656504
Dimensions5.01 × 5.16 × 3.02 mm
L/W Ratio1.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.01 mm5.16 mm0.45 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846656504
Side View
Table 54.0%Crown 29.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 58.5%

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: Oct 30
Current: £538 GBP|Low: £86 GBP|High: £538 GBP|Avg: £225 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5£86 GBP
Retailer 6£127 GBP
Retailer 3£143 GBP
Retailer 7£160 GBP
Retailer 2£194 GBP
Retailer 4£209 GBP
MOH London£538 GBP

5 data points across 7 retailers

7 retailers£86 GBP to £538 GBP

A
Cheapest Retailer
-
£86 GBP
HK$900 HKD
B+
Retailer 2
-
£127 GBP
View
B+
Retailer 3
-
£143 GBP
€182 EUR
View
B+
Retailer 4
-
£160 GBP
$215 USD
View
B+
Retailer 5
-
£194 GBP
$260 USD
View
B
Retailer 6
-
£209 GBP
SGD 379 SGD
View
Most Expensive
B
MOH London
LG846656504 · Oct 26
£538 GBP
View
6 more retailers have this diamond
Prices start from £86 GBPSave up to £452 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
0.45ct Heart
£86 GBP