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Round|Lab Grown|IGI

1.10ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG447099973

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099973

Diamond specifications and retailer prices

From £590 GBP
$790 USD
As of October 31, 2026
Save £2,832 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,422 GBP at MOH London · As of October 29, 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 LG447099973 or 447099973. Listed at 13 retailers as of October 29, 2026, with prices from £590 to £3,422, a £2,832 spread on the same certified stone. MOH London lists it at £3,422. 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 angle32.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099973
Dimensions6.61 × 6.66 × 4.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.61 mm6.66 mm1.10 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099973
Side View
Table 59.0%Crown 32.8°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.3%

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: £3,422 GBP|Low: £590 GBP|High: £3,449 GBP|Avg: £1,579 GBP|+0.5%
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
Retailer 15
October 30, 2026
Retailer 10£590 GBP
Retailer 9£914 GBP
Retailer 14£993 GBP
Retailer 3£1,022 GBP
Retailer 11£1,059 GBP
Retailer 13£1,059 GBP
Retailer 4£1,187 GBP
Retailer 2£1,391 GBP
Retailer 5£1,482 GBP
Retailer 12£1,680 GBP
Retailer 8£1,813 GBP
Retailer 15£1,985 GBP
Retailer 6£2,029 GBP
Retailer 7£3,033 GBP
MOH London£3,422 GBP

38 data points across 15 retailers

13 retailers£590 GBP to £3,422 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
$1,369 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,059 GBP
$1,419 USD
View
Retailer 6
-
£1,059 GBP
$1,419 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
£1,187 GBP
$1,590 USD
View
B+
Retailer 8
-
£1,391 GBP
View
B
Retailer 9
-
£1,680 GBP
$2,251 USD
View
B
Retailer 10
-
£1,813 GBP
€2,313 EUR
View
B
Retailer 11
-
£1,985 GBP
$2,660 USD
View
B
Retailer 12
-
£2,029 GBP
$2,719 USD
View
Most Expensive
B
MOH London
LG447099973 · Oct 29
£3,422 GBP
View
12 more retailers have this diamond
Prices start from £590 GBPSave up to £2,832 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