CaratHunter
Plans
Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG494167965

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494167965

Diamond specifications and retailer prices

From £206 GBP
$276 USD
As of October 29, 2026
Save £1,623 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,829 GBP at Do Amore Diamonds · As of October 31, 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 LG494167965 or 494167965. Listed at 17 retailers as of October 29, 2026, with prices from £206 to £1,829, a £1,623 spread on the same certified stone. Do Amore Diamonds lists it at £1,829. 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 angle35.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494167965
Dimensions7.35 × 7.42 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS Hearts and Arrows pattern viewable with H&A scope. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.35 mm7.42 mm1.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494167965
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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 29
Current: £1,829 GBP|Low: £206 GBP|High: £1,829 GBP|Avg: £641 GBP
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 17£206 GBP
Retailer 14£239 GBP
Retailer 5£255 GBP
Retailer 13£255 GBP
Retailer 10£299 GBP
Retailer 3£337 GBP
Retailer 2£373 GBP
Retailer 11£457 GBP
Retailer 15£506 GBP
Retailer 8£517 GBP
Retailer 9£599 GBP
Retailer 16£785 GBP
Retailer 7£905 GBP
Retailer 6£907 GBP
Retailer 4£1,029 GBP
Retailer 12£1,136 GBP
Do Amore Diamonds£1,829 GBP

15 data points across 17 retailers

17 retailers£206 GBP to £1,829 GBP

A
Cheapest Retailer
-
£206 GBP
$276 USD
A
Retailer 2
-
£239 GBP
$320 USD
View
A
Retailer 3
-
£255 GBP
$342 USD
View
A
Retailer 4
-
£255 GBP
$342 USD
View
B+
Retailer 5
-
£299 GBP
$400 USD
View
A
Retailer 6
-
£337 GBP
$451 USD
View
A
Retailer 7
-
£373 GBP
$500 USD
View
A
Retailer 8
-
£457 GBP
View
A
Retailer 9
-
£506 GBP
$678 USD
View
A
Retailer 10
-
£517 GBP
$693 USD
View
A
Retailer 11
-
£599 GBP
$803 USD
View
A
Retailer 12
-
£785 GBP
$1,052 USD
View
A
Retailer 13
-
£905 GBP
$1,212 USD
View
A
Retailer 14
-
£907 GBP
$1,215 USD
View
B+
Retailer 15
-
£1,029 GBP
$1,379 USD
View
B+
Retailer 16
-
£1,136 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C114E6748 · Oct 31
£1,829 GBP
$2,450 USD
View
16 more retailers have this diamond
Prices start from £206 GBPSave up to £1,623 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
£206 GBP