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Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG534264856

Shape and cutting style on the report: Round brilliant

Certificate IGI LG534264856

Diamond specifications and retailer prices

From £205 GBP
As of November 5, 2026
Save £1,615 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,820 GBP at Do Amore Diamonds · As of November 6, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG534264856 or 534264856. Listed at 18 retailers as of November 5, 2026, with prices from £205 to £1,820, a £1,615 spread on the same certified stone. Do Amore Diamonds lists it at £1,820. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG534264856
Dimensions7.39 × 7.36 × 4.44 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.39 mm7.36 mm1.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG534264856
Side View
Table 59.0%Crown 34.6°Girdle: MED-STKPavilion 40.1°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 5
Current: £1,820 GBP|Low: £161 GBP|High: £1,820 GBP|Avg: £646 GBP|+17.8%
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 6, 2026
Retailer 10£205 GBP
Retailer 11£254 GBP
Retailer 12£254 GBP
Retailer 9£335 GBP
Retailer 6£371 GBP
Retailer 13£421 GBP
Retailer 2£450 GBP
Retailer 4£597 GBP
Retailer 8£782 GBP
Retailer 5£901 GBP
Retailer 3£1,024 GBP
Retailer 7£1,124 GBP
Do Amore Diamonds£1,820 GBP

30 data points across 13 retailers

18 retailers£205 GBP to £1,820 GBP

Retailer 1
-
£161 GBP
Price last confirmed 45 days ago
Retailer 2
-
£186 GBP
View
Price last confirmed 45 days ago
Retailer 3
-
£197 GBP
View
Price last confirmed 45 days ago
Retailer 4
-
£199 GBP
View
Price last confirmed 35 days ago
A
Retailer 5
-
£205 GBP
View
A
Retailer 6
-
£254 GBP
View
Retailer 7
-
£254 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
£335 GBP
View
A
Retailer 9
-
£371 GBP
View
A
Retailer 10
-
£421 GBP
View
A
Retailer 11
-
£450 GBP
View
A
Retailer 12
-
£597 GBP
View
Retailer 13
-
£708 GBP
View
Price last confirmed 46 days ago
B+
Retailer 14
-
£782 GBP
View
A
Retailer 15
-
£901 GBP
View
B+
Retailer 16
-
£1,024 GBP
View
B+
Retailer 17
-
£1,124 GBP
View
Most Expensive
B
Do Amore Diamonds
27-F94E4C3BA · Nov 6
£1,820 GBP
$2,450 USD
View
17 more retailers have this diamond
Prices start from £205 GBPSave up to £1,615 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
£205 GBP