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Round|Lab Grown|IGI

1.53ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG407950829

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407950829

Diamond specifications and retailer prices

From £634 GBP
$850 USD
As of October 30, 2026
Save £2,852 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,486 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407950829 or 407950829. Listed at 10 retailers as of October 25, 2026, with prices from £634 to £3,486, a £2,852 spread on the same certified stone. MOH London lists it at £3,486. 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

1.53
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407950829
Dimensions7.59 × 7.51 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.59 mm7.51 mm1.53 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407950829
Side View
Table 61.0%Crown 31.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 58.9%

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: Oct 30
Current: £3,486 GBP|Low: £634 GBP|High: £3,524 GBP|Avg: £1,730 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2£634 GBP
Retailer 4£1,017 GBP
Retailer 5£1,046 GBP
Retailer 7£1,502 GBP
Retailer 3£1,716 GBP
Retailer 6£2,020 GBP
Retailer 8£2,426 GBP
MOH London£3,486 GBP

10 data points across 8 retailers

10 retailers£634 GBP to £3,486 GBP

A
Cheapest Retailer
-
£634 GBP
$850 USD
B+
Retailer 2
-
£934 GBP
$1,252 USD
View
B+
Retailer 3
-
£1,017 GBP
$1,362 USD
View
B+
Retailer 4
-
£1,046 GBP
$1,401 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,084 GBP
$1,452 USD
View
Retailer 6
-
£1,084 GBP
$1,452 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,716 GBP
$2,299 USD
View
B
Retailer 8
-
£2,020 GBP
$2,706 USD
View
B
Retailer 9
-
£2,032 GBP
$2,722 USD
View
Most Expensive
B
MOH London
LG407950829 · Oct 25
£3,486 GBP
View
9 more retailers have this diamond
Prices start from £634 GBPSave up to £2,852 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
£634 GBP