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Round|Lab Grown|IGI

1.14ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG440011237

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440011237

Diamond specifications and retailer prices

From £605 GBP
$810 USD
As of October 31, 2026
Save £2,924 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,529 GBP at MOH London · As of October 27, 2026
View at MOH London

About this 1.14ct lab-grown round diamond

This 1.14ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440011237 or 440011237. Listed at 12 retailers as of October 27, 2026, with prices from £605 to £3,529, a £2,924 spread on the same certified stone. MOH London lists it at £3,529. 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

1.14
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440011237
Dimensions6.67 × 6.71 × 4.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.67 mm6.71 mm1.14 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440011237
Side View
Table 55.5%Crown 35.5°GirdlePavilion 40.6°Culet: NoneDepth 62.1%

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 31
Current: £3,529 GBP|Low: £605 GBP|High: £3,571 GBP|Avg: £1,554 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 5£605 GBP
Retailer 4£946 GBP
Retailer 9£1,059 GBP
Retailer 6£1,097 GBP
Retailer 8£1,097 GBP
Retailer 10£1,224 GBP
Retailer 11£1,506 GBP
Retailer 7£1,737 GBP
Retailer 2£1,871 GBP
Retailer 3£2,045 GBP
MOH London£3,529 GBP

22 data points across 11 retailers

12 retailers£605 GBP to £3,529 GBP

A
Cheapest Retailer
-
£605 GBP
$810 USD
B+
Retailer 2
-
£946 GBP
$1,267 USD
View
B+
Retailer 3
-
£1,029 GBP
$1,379 USD
View
B+
Retailer 4
-
£1,059 GBP
$1,419 USD
View
Final sale: no returns
Retailer 5
-
£1,097 GBP
$1,470 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£1,097 GBP
$1,470 USD
View
B
Retailer 7
-
£1,224 GBP
$1,640 USD
View
B
Retailer 8
-
£1,737 GBP
$2,328 USD
View
B
Retailer 9
-
£1,871 GBP
€2,388 EUR
View
B
Retailer 10
-
£2,045 GBP
$2,740 USD
View
B
Retailer 11
-
£2,056 GBP
$2,755 USD
View
Most Expensive
B
MOH London
LG440011237 · Oct 27
£3,529 GBP
View
11 more retailers have this diamond
Prices start from £605 GBPSave up to £2,924 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
1.14ct Round
£605 GBP