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Round|Lab Grown|IGI

1.53ct H SI1 Round Lab Grown Diamond

VG • H/SI1 • IGI LG12256616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12256616

Diamond specifications and retailer prices

From £247 GBP
$331 USD
As of October 29, 2026
Save £1,077 GBP (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,324 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.53ct lab-grown round diamond

This 1.53ct 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 very-good cut grade and certified by IGI LG12256616 or 12256616. Listed at 17 retailers as of October 25, 2026, with prices from £247 to £1,324, a £1,077 spread on the same certified stone. MOH London lists it at £1,324. 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

1.53
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12256616
Dimensions7.21 × 7.28 × 4.65 mm
L/W Ratio1.01
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.21 mm7.28 mm1.53 ctH / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12256616
Side View
Table 58.0%Crown 36°Girdle: STK-UNDPavilion 41.7°Culet: NoneDepth 64.1%

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: £1,324 GBP|Low: £247 GBP|High: £1,324 GBP|Avg: £629 GBP
MOH London
Retailer 2
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Retailer 17
November 1, 2026
Retailer 16£247 GBP
Retailer 13£287 GBP
Retailer 11£302 GBP
Retailer 5£307 GBP
Retailer 12£307 GBP
Retailer 17£357 GBP
Retailer 6£422 GBP
Retailer 8£528 GBP
Retailer 2£546 GBP
Retailer 14£555 GBP
Retailer 10£575 GBP
Retailer 9£607 GBP
Retailer 15£899 GBP
Retailer 7£922 GBP
Retailer 4£1,087 GBP
Retailer 3£1,205 GBP
MOH London£1,324 GBP

15 data points across 17 retailers

17 retailers£247 GBP to £1,324 GBP

A
Cheapest Retailer
-
£247 GBP
$331 USD
A
Retailer 2
-
£287 GBP
$384 USD
View
B+
Retailer 3
-
£302 GBP
$405 USD
View
B+
Retailer 4
-
£307 GBP
$411 USD
View
B+
Retailer 5
-
£307 GBP
$411 USD
View
B+
Retailer 6
-
£357 GBP
$478 USD
View
B+
Retailer 7
-
£422 GBP
$565 USD
View
B+
Retailer 8
-
£528 GBP
$707 USD
View
A
Retailer 9
-
£546 GBP
View
B+
Retailer 10
-
£555 GBP
$743 USD
View
A
Retailer 11
-
£575 GBP
$770 USD
View
B+
Retailer 12
-
£607 GBP
$813 USD
View
B+
Retailer 13
-
£899 GBP
$1,204 USD
View
B+
Retailer 14
-
£922 GBP
$1,236 USD
View
B+
Retailer 15
-
£1,087 GBP
$1,457 USD
View
B
Retailer 16
-
£1,205 GBP
$1,614 USD
View
Most Expensive
B
MOH London
LG12256616 · Oct 25
£1,324 GBP
View
16 more retailers have this diamond
Prices start from £247 GBPSave up to £1,077 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
1.53ct Round
£247 GBP