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Heart|Lab Grown|IGI

1.13ct I SI1 Heart Lab Grown Diamond

VG • I/SI1 • IGI LG436045969

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG436045969

Diamond specifications and retailer prices

From £493 GBP
As of November 6, 2026
Save £2,624 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,117 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.13ct lab-grown heart diamond

This 1.13ct lab-grown heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436045969 or 436045969. Listed at 10 retailers as of November 1, 2026, with prices from £493 to £3,117, a £2,624 spread on the same certified stone. MOH London lists it at £3,117. 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

1.13
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle30.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045969
Dimensions7.21 × 6.52 × 4.34 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Top View
7.21 mm6.52 mm1.13 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045969
Side View
Table 56.5%Crown 30.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.2%

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: £3,117 GBP|Low: £493 GBP|High: £3,155 GBP|Avg: £1,480 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2£493 GBP
Retailer 3£837 GBP
Retailer 4£970 GBP
Retailer 6£1,098 GBP
Retailer 8£1,375 GBP
Retailer 5£1,544 GBP
Retailer 7£1,968 GBP
MOH London£3,117 GBP

13 data points across 8 retailers

10 retailers£493 GBP to £3,117 GBP

A
Cheapest Retailer
-
£493 GBP
B+
Retailer 2
-
£837 GBP
View
B+
Retailer 3
-
£910 GBP
View
B+
Retailer 4
-
£970 GBP
View
Retailer 5
-
£970 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£1,098 GBP
View
B
Retailer 7
-
£1,544 GBP
View
B
Retailer 8
-
£1,818 GBP
View
B
Retailer 9
-
£1,968 GBP
View
Most Expensive
C
MOH London
LG436045969 · Nov 1
£3,117 GBP
View
9 more retailers have this diamond
Prices start from £493 GBPSave up to £2,624 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
1.13ct Heart
£493 GBP