CaratHunter
Plans
Round|Lab Grown|IGI

1.54ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG794614188

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794614188

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of October 29, 2026
Save £710 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £857 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794614188 or 794614188. Listed at 19 retailers as of October 25, 2026, with prices from £147 to £857, a £710 spread on the same certified stone. MOH London lists it at £857. 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

1.54
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794614188
Dimensions7.59 × 7.55 × 4.41 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.59 mm7.55 mm1.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794614188
Side View
Table 61.0%Crown 32.5°Girdle: MediumPavilion 40.3°Culet: NoneDepth 58.4%

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: £857 GBP|Low: £143 GBP|High: £878 GBP|Avg: £420 GBP|-0.9%
MOH London
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
October 31, 2026
Retailer 4£147 GBP
Retailer 15£164 GBP
Retailer 14£170 GBP
Retailer 2£182 GBP
Retailer 6£183 GBP
Retailer 16£316 GBP
Retailer 9£329 GBP
Retailer 12£350 GBP
Retailer 13£431 GBP
Retailer 11£472 GBP
Retailer 5£545 GBP
Retailer 10£585 GBP
Retailer 7£594 GBP
Retailer 3£625 GBP
Retailer 8£649 GBP
MOH London£857 GBP

35 data points across 16 retailers

19 retailers£147 GBP to £857 GBP

A
Cheapest Retailer
-
£147 GBP
$197 USD
Retailer 2
-
£147 GBP
$197 USD
View
Price last confirmed 42 days ago
A
Retailer 3
-
£164 GBP
$220 USD
View
Final sale: no returns
A
Retailer 4
-
£170 GBP
$228 USD
View
Retailer 5
-
£178 GBP
$239 USD
View
Price last confirmed 42 days ago
A
Retailer 6
-
£182 GBP
$244 USD
View
A
Retailer 7
-
£183 GBP
$245 USD
View
B+
Retailer 8
-
£316 GBP
$424 USD
View
A
Retailer 9
-
£329 GBP
View
A
Retailer 10
-
£350 GBP
$469 USD
View
B+
Retailer 11
-
£431 GBP
$577 USD
View
B+
Retailer 12
-
£472 GBP
$632 USD
View
B
Retailer 13
-
£545 GBP
$730 USD
View
Retailer 14
-
£581 GBP
$779 USD
View
Price last confirmed 40 days ago
B
Retailer 15
-
£585 GBP
$784 USD
View
B+
Retailer 16
-
£594 GBP
SGD 1,076 SGD
View
B+
Retailer 17
-
£625 GBP
$837 USD
View
B
Retailer 18
-
£649 GBP
$870 USD
View
Most Expensive
B
MOH London
LG794614188 · Oct 25
£857 GBP
View
18 more retailers have this diamond
Prices start from £147 GBPSave up to £710 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
1.54ct Round
£147 GBP