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Round|Lab Grown|IGI

1.01ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG478112367

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478112367

Diamond specifications and retailer prices

From £433 GBP
$580 USD
As of October 31, 2026
Save £2,699 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,132 GBP at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478112367 or 478112367. Listed at 13 retailers as of October 31, 2026, with prices from £433 to £3,132, a £2,699 spread on the same certified stone. MOH London lists it at £3,132. 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

1.01
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478112367
Dimensions6.53 × 6.50 × 3.93 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
6.53 mm6.50 mm1.01 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478112367
Side View
Table 60.0%Crown 31.6°Girdle: MediumPavilion 41.6°Culet: NoneDepth 60.3%

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: £3,132 GBP|Low: £433 GBP|High: £3,173 GBP|Avg: £1,453 GBP
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
November 1, 2026
Retailer 8£433 GBP
Retailer 10£840 GBP
Retailer 3£914 GBP
Retailer 15£940 GBP
Retailer 11£975 GBP
Retailer 13£975 GBP
Retailer 4£1,105 GBP
Retailer 2£1,276 GBP
Retailer 5£1,377 GBP
Retailer 12£1,550 GBP
Retailer 9£1,670 GBP
Retailer 14£1,827 GBP
Retailer 6£1,920 GBP
Retailer 7£2,790 GBP
MOH London£3,132 GBP

38 data points across 15 retailers

13 retailers£433 GBP to £3,132 GBP

A
Cheapest Retailer
-
£433 GBP
$580 USD
B+
Retailer 2
-
£840 GBP
$1,126 USD
View
B+
Retailer 3
-
£914 GBP
$1,225 USD
View
B+
Retailer 4
-
£940 GBP
$1,260 USD
View
Final sale: no returns
Retailer 5
-
£975 GBP
$1,306 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£975 GBP
$1,306 USD
View
B
Retailer 7
-
£1,105 GBP
$1,480 USD
View
B+
Retailer 8
-
£1,276 GBP
View
B
Retailer 9
-
£1,550 GBP
$2,077 USD
View
B
Retailer 10
-
£1,670 GBP
€2,131 EUR
View
B
Retailer 11
-
£1,827 GBP
$2,448 USD
View
B
Retailer 12
-
£1,920 GBP
$2,573 USD
View
Most Expensive
B
MOH London
LG478112367 · Nov 1
£3,132 GBP
View
12 more retailers have this diamond
Prices start from £433 GBPSave up to £2,699 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
1.01ct Round
£433 GBP