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Round|Lab Grown|IGI

1.06ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG447099778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099778

Diamond specifications and retailer prices

From £463 GBP
$620 USD
As of October 31, 2026
Save £2,838 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,300 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.06ct lab-grown round diamond

This 1.06ct 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 LG447099778 or 447099778. Listed at 12 retailers as of October 29, 2026, with prices from £463 to £3,300, a £2,838 spread on the same certified stone. MOH London lists it at £3,300. 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

1.06
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099778
Dimensions6.51 × 6.48 × 4.07 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.51 mm6.48 mm1.06 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099778
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.7%

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: £3,300 GBP|Low: £463 GBP|High: £3,327 GBP|Avg: £1,412 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
October 30, 2026
Retailer 2£463 GBP
Retailer 6£881 GBP
Retailer 10£987 GBP
Retailer 7£1,022 GBP
Retailer 9£1,022 GBP
Retailer 4£1,108 GBP
Retailer 11£1,149 GBP
Retailer 12£1,436 GBP
Retailer 8£1,622 GBP
Retailer 5£1,751 GBP
Retailer 3£2,013 GBP
MOH London£3,300 GBP

17 data points across 12 retailers

12 retailers£463 GBP to £3,300 GBP

A
Cheapest Retailer
-
£463 GBP
$620 USD
B+
Retailer 2
-
£881 GBP
$1,180 USD
View
B+
Retailer 3
-
£958 GBP
$1,284 USD
View
B+
Retailer 4
-
£987 GBP
$1,322 USD
View
Final sale: no returns
Retailer 5
-
£1,022 GBP
$1,369 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£1,022 GBP
$1,369 USD
View
B
Retailer 7
-
£1,149 GBP
$1,540 USD
View
B
Retailer 8
-
£1,622 GBP
$2,173 USD
View
B
Retailer 9
-
£1,751 GBP
€2,234 EUR
View
B
Retailer 10
-
£1,915 GBP
$2,566 USD
View
B
Retailer 11
-
£2,013 GBP
$2,697 USD
View
Most Expensive
B
MOH London
LG447099778 · Oct 29
£3,300 GBP
View
11 more retailers have this diamond
Prices start from £463 GBPSave up to £2,838 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
1.06ct Round
£463 GBP