Round|Lab Grown|IGI

1.05ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG825630578

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825630578

Diamond specifications and retailer prices

From £186 GBP
$249 USD
As of October 29, 2026
Save £517 GBP (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £832 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825630578 or 825630578. Listed at 15 retailers as of October 27, 2026, with a 278% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825630578
Dimensions6.50 × 6.45 × 3.99 mm
L/W Ratio1.01
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.50 mm6.45 mm1.05 ctI / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825630578
Side View
Table 60.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

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 29
Current: £832 GBP|Low: £111 GBP|High: £837 GBP|Avg: £344 GBP|+29.3%
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
November 2, 2026
Retailer 4£116 GBP
Retailer 5£134 GBP
Retailer 12£186 GBP
Retailer 10£278 GBP
Retailer 6£295 GBP
Retailer 3£304 GBP
Retailer 2£339 GBP
Retailer 7£358 GBP
Retailer 9£395 GBP
Retailer 13£467 GBP
Retailer 8£508 GBP
Retailer 11£703 GBP
MOH London£832 GBP

41 data points across 13 retailers

15 retailers£186 GBP to £703 GBP

Retailer 1
-
£116 GBP
$155 USD
Price last confirmed 22 days ago
Retailer 2
-
£134 GBP
$180 USD
View
Price last confirmed 24 days ago
Retailer 3
-
£143 GBP
$192 USD
View
Price last confirmed 30 days ago
B+
Retailer 4
-
£186 GBP
$249 USD
View
Final sale: no returns
A
Retailer 5
-
£278 GBP
$372 USD
View
B+
Retailer 6
-
£295 GBP
$395 USD
View
Retailer 7
-
£304 GBP
ZAR 6,586 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£339 GBP
€433 EUR
View
B+
Retailer 9
-
£358 GBP
$480 USD
View
B+
Retailer 10
-
£395 GBP
$529 USD
View
Retailer 11
-
£461 GBP
$618 USD
View
Price last confirmed 32 days ago
B
Retailer 12
-
£467 GBP
View
B
Retailer 13
-
£508 GBP
$680 USD
View
B
Retailer 14
-
£703 GBP
$942 USD
View
Most Expensive
MOH London
LG825630578 · Oct 18
£832 GBP
View
Price last confirmed 15 days ago
14 more retailers have this diamond
Prices start from £186 GBPSave up to £517 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
1.05ct Round
£186 GBP