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Round|Lab Grown|IGI

1.53ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG440013546

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440013546

Diamond specifications and retailer prices

From £632 GBP
As of November 5, 2026
Save £2,794 GBP (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,425 GBP at MOH London · As of November 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440013546 or 440013546. Listed at 12 retailers as of November 3, 2026, with prices from £632 to £3,425, a £2,794 spread on the same certified stone. MOH London lists it at £3,425. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440013546
Dimensions7.55 × 7.52 × 4.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.55 mm7.52 mm1.53 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440013546
Side View
Table 58.5%Crown 31.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.7%

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: £3,425 GBP|Low: £632 GBP|High: £3,471 GBP|Avg: £1,627 GBP
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
November 5, 2026
Retailer 7£632 GBP
Retailer 8£1,033 GBP
Retailer 12£1,125 GBP
Retailer 11£1,158 GBP
Retailer 9£1,199 GBP
Retailer 14£1,199 GBP
Retailer 3£1,326 GBP
Retailer 6£1,380 GBP
Retailer 5£1,638 GBP
Retailer 10£1,893 GBP
Retailer 2£2,155 GBP
Retailer 4£2,176 GBP
Retailer 13£2,248 GBP
MOH London£3,425 GBP

39 data points across 14 retailers

12 retailers£632 GBP to £3,425 GBP

A
Cheapest Retailer
-
£632 GBP
B+
Retailer 2
-
£1,033 GBP
View
B+
Retailer 3
-
£1,125 GBP
View
B+
Retailer 4
-
£1,158 GBP
View
Final sale: no returns
Retailer 5
-
£1,199 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£1,199 GBP
View
B+
Retailer 7
-
£1,326 GBP
View
B
Retailer 8
-
£1,893 GBP
View
B
Retailer 9
-
£2,155 GBP
View
B
Retailer 10
-
£2,176 GBP
View
B
Retailer 11
-
£2,248 GBP
View
Most Expensive
B
MOH London
LG440013546 · Nov 3
£3,425 GBP
View
11 more retailers have this diamond
Prices start from £632 GBPSave up to £2,794 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
£632 GBP