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Heart|Lab Grown|IGI

1.50ct E SI1 Heart Lab Grown Diamond

GD • E/SI1 • IGI LG801626387

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG801626387

Diamond specifications and retailer prices

From £151 GBP
As of November 6, 2026
Save £746 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £897 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.5ct lab-grown heart diamond

This 1.5ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG801626387 or 801626387. Listed at 16 retailers as of November 6, 2026, with prices from £151 to £897, a £746 spread on the same certified stone. Reve Diamonds lists it at £897. 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

1.50
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801626387
Dimensions6.33 × 7.57 × 4.97 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.33 mm7.57 mm1.50 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801626387
Side View
Table 57.0%Crown 36.9°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 65.7%

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: Nov 6
Current: £297 GBP|Low: £146 GBP|High: £897 GBP|Avg: £376 GBP
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 6£151 GBP
Retailer 2£168 GBP
Retailer 14£176 GBP
Retailer 5£188 GBP
Retailer 9£188 GBP
Retailer 13£253 GBP
Retailer 1£297 GBP
Retailer 12£336 GBP
Retailer 7£341 GBP
Retailer 11£379 GBP
Retailer 4£602 GBP
Retailer 10£604 GBP
Retailer 3£642 GBP
Retailer 8£873 GBP
Reve Diamonds£897 GBP

45 data points across 15 retailers

16 retailers£151 GBP to £897 GBP

A
Cheapest Retailer
-
£151 GBP
B+
Retailer 2
-
£168 GBP
View
Final sale: no returns
B+
Retailer 3
-
£176 GBP
View
A
Retailer 4
-
£188 GBP
View
Retailer 5
-
£188 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£210 GBP
View
B+
Retailer 7
-
£253 GBP
View
B+
Retailer 8
-
£297 GBP
View
B+
Retailer 9
-
£336 GBP
View
B+
Retailer 10
-
£341 GBP
View
B+
Retailer 11
-
£379 GBP
View
B
Retailer 12
-
£602 GBP
View
B
Retailer 13
-
£604 GBP
View
B
Retailer 14
-
£642 GBP
View
B
Retailer 15
-
£873 GBP
View
Most Expensive
C
Reve Diamonds
E89D2BDD7 · Nov 6
£897 GBP
$1,201 USD
View
15 more retailers have this diamond
Prices start from £151 GBPSave up to £746 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
1.50ct Heart
£151 GBP