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Round|Lab Grown|IGI

1.10ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG492123234

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123234

Diamond specifications and retailer prices

From £590 GBP
$790 USD
As of October 31, 2026
Save £2,814 GBP (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,404 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.1ct lab-grown round diamond

This 1.1ct 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 LG492123234 or 492123234. Listed at 12 retailers as of October 31, 2026, with prices from £590 to £3,404, a £2,814 spread on the same certified stone. MOH London lists it at £3,404. 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

1.10
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123234
Dimensions6.53 × 6.49 × 4.14 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
6.53 mm6.49 mm1.10 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123234
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.5%

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: £3,404 GBP|Low: £590 GBP|High: £3,449 GBP|Avg: £1,634 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6£590 GBP
Retailer 5£914 GBP
Retailer 10£1,022 GBP
Retailer 7£1,059 GBP
Retailer 9£1,059 GBP
Retailer 11£1,187 GBP
Retailer 12£1,482 GBP
Retailer 8£1,680 GBP
Retailer 2£1,808 GBP
Retailer 3£2,029 GBP
Retailer 4£3,033 GBP
MOH London£3,404 GBP

21 data points across 12 retailers

12 retailers£590 GBP to £3,404 GBP

A
Cheapest Retailer
-
£590 GBP
$790 USD
B+
Retailer 2
-
£914 GBP
$1,224 USD
View
B+
Retailer 3
-
£993 GBP
$1,331 USD
View
B+
Retailer 4
-
£1,022 GBP
$1,370 USD
View
Final sale: no returns
Retailer 5
-
£1,059 GBP
$1,419 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£1,059 GBP
$1,419 USD
View
B
Retailer 7
-
£1,187 GBP
$1,590 USD
View
B
Retailer 8
-
£1,680 GBP
$2,251 USD
View
B
Retailer 9
-
£1,808 GBP
€2,307 EUR
View
B
Retailer 10
-
£1,985 GBP
$2,660 USD
View
B
Retailer 11
-
£2,029 GBP
$2,719 USD
View
Most Expensive
B
MOH London
LG492123234 · Nov 1
£3,404 GBP
View
11 more retailers have this diamond
Prices start from £590 GBPSave up to £2,814 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
1.10ct Round
£590 GBP