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Round|Lab Grown|IGI

1.10ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG474128816

Shape and cutting style on the report: Round brilliant

Certificate IGI LG474128816

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of October 30, 2026
Save £1,945 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,423 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474128816 or 474128816. Listed at 11 retailers as of October 29, 2026, with prices from £478 to £2,423, a £1,945 spread on the same certified stone. MOH London lists it at £2,423. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474128816
Dimensions6.66 × 6.64 × 4.05 mm
L/W Ratio1.00
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
6.66 mm6.64 mm1.10 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474128816
Side View
Table 59.5%Crown 32.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.9%

Caratlytics Score

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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: £2,423 GBP|Low: £478 GBP|High: £2,439 GBP|Avg: £945 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
October 30, 2026
Retailer 2£478 GBP
Retailer 5£529 GBP
Retailer 9£593 GBP
Retailer 6£613 GBP
Retailer 8£613 GBP
Retailer 3£633 GBP
Retailer 10£746 GBP
Retailer 11£970 GBP
Retailer 7£996 GBP
Retailer 4£1,511 GBP
MOH London£2,423 GBP

16 data points across 11 retailers

11 retailers£478 GBP to £2,423 GBP

A
Cheapest Retailer
-
£478 GBP
$640 USD
A
Retailer 2
-
£529 GBP
$709 USD
View
A
Retailer 3
-
£575 GBP
$771 USD
View
A
Retailer 4
-
£593 GBP
$794 USD
View
Final sale: no returns
A
Retailer 5
-
£613 GBP
$822 USD
View
Retailer 6
-
£613 GBP
$822 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
£746 GBP
$1,000 USD
View
B+
Retailer 8
-
£996 GBP
$1,335 USD
View
B
Retailer 9
-
£1,511 GBP
$2,025 USD
View
B
Retailer 10
-
£1,726 GBP
$2,312 USD
View
Most Expensive
B
MOH London
LG474128816 · Oct 29
£2,423 GBP
View
10 more retailers have this diamond
Prices start from £478 GBPSave up to £1,945 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
£478 GBP