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Round|Lab Grown|IGI

1.01ct I SI2 Round Lab Grown Diamond

VG • I/SI2 • IGI LG480150390

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480150390

Diamond specifications and retailer prices

From £526 GBP
$700 USD
As of October 29, 2026
Save £1,301 GBP (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,891 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG480150390 or 480150390. Listed at 11 retailers as of October 26, 2026, with a 248% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480150390
Dimensions6.46 × 6.54 × 3.87 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
6.46 mm6.54 mm1.01 ctI / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG480150390
Side View
Table 63.0%Crown 30.8°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,891 GBP|Low: £526 GBP|High: £2,910 GBP|Avg: £1,339 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 29, 2026
Retailer 6£526 GBP
Retailer 5£731 GBP
Retailer 10£819 GBP
Retailer 7£848 GBP
Retailer 9£848 GBP
Retailer 11£1,225 GBP
Retailer 8£1,356 GBP
Retailer 2£1,457 GBP
Retailer 4£1,827 GBP
Retailer 3£1,897 GBP
MOH London£2,891 GBP

18 data points across 11 retailers

11 retailers£526 GBP to £1,827 GBP

B+
Cheapest Retailer
-
£526 GBP
$700 USD
B+
Retailer 2
-
£731 GBP
$973 USD
View
B+
Retailer 3
-
£795 GBP
$1,059 USD
View
B+
Retailer 4
-
£819 GBP
$1,090 USD
View
Final sale: no returns
B+
Retailer 5
-
£848 GBP
$1,129 USD
View
Retailer 6
-
£848 GBP
$1,129 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
£1,356 GBP
$1,806 USD
View
B
Retailer 8
-
£1,457 GBP
€1,848 EUR
View
B
Retailer 9
-
£1,589 GBP
$2,116 USD
View
B
Retailer 10
-
£1,827 GBP
$2,433 USD
View
Most Expensive
MOH London
LG480150390 · Oct 18
£2,891 GBP
View
Price last confirmed 12 days ago
10 more retailers have this diamond
Prices start from £526 GBPSave up to £1,301 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.

B+
1.01ct Round
£526 GBP