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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG668471167

Shape and cutting style on the report: Round brilliant

Certificate IGI LG668471167

Diamond specifications and retailer prices

From £150 GBP
As of November 5, 2026
Save £1,291 GBP (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,441 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG668471167 or 668471167. Listed at 14 retailers as of November 4, 2026, with prices from £150 to £1,441, a £1,291 spread on the same certified stone. Do Amore Diamonds lists it at £1,441. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668471167
Dimensions7.33 × 7.30 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.33 mm7.30 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668471167
Side View
Table 60.0%Crown 34.9°Girdle: Slightly ThickPavilion 40.9°Culet: NoneDepth 61.5%

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 5
Current: £1,441 GBP|Low: £150 GBP|High: £1,672 GBP|Avg: £518 GBP|-13.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 3£150 GBP
Retailer 11£186 GBP
Retailer 12£186 GBP
Retailer 9£241 GBP
Retailer 5£250 GBP
Retailer 2£377 GBP
Retailer 10£432 GBP
Retailer 8£462 GBP
Retailer 7£513 GBP
Retailer 13£600 GBP
Retailer 4£660 GBP
Retailer 6£820 GBP
Do Amore Diamonds£1,441 GBP

40 data points across 13 retailers

14 retailers£150 GBP to £1,441 GBP

A
Cheapest Retailer
-
£150 GBP
Retailer 2
-
£186 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£186 GBP
View
Retailer 4
-
£213 GBP
View
Price last confirmed 66 days ago
A
Retailer 5
-
£241 GBP
View
B+
Retailer 6
-
£250 GBP
View
A
Retailer 7
-
£377 GBP
View
B+
Retailer 8
-
£432 GBP
View
B+
Retailer 9
-
£462 GBP
View
B+
Retailer 10
-
£513 GBP
View
B
Retailer 11
-
£600 GBP
View
B
Retailer 12
-
£660 GBP
View
B
Retailer 13
-
£820 GBP
View
Most Expensive
B
Do Amore Diamonds
27-17D849307 · Nov 4
£1,441 GBP
$1,940 USD
View
13 more retailers have this diamond
Prices start from £150 GBPSave up to £1,291 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 Round
£150 GBP