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Round|Lab Grown|IGI

1.05ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG490193809

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490193809

Diamond specifications and retailer prices

From £619 GBP
$830 USD
As of October 31, 2026
Save £713 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,214 GBP at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

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 LG490193809 or 490193809. Listed at 14 retailers as of October 31, 2026, with a 115% 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490193809
Dimensions6.59 × 6.56 × 3.94 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
6.59 mm6.56 mm1.05 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490193809
Side View
Table 58.5%Crown 32.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,214 GBP|Low: £619 GBP|High: £3,486 GBP|Avg: £1,738 GBP|+2.7%
Cape Diamonds
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 11£619 GBP
Retailer 10£1,038 GBP
Retailer 4£1,130 GBP
Retailer 3£1,163 GBP
Retailer 12£1,205 GBP
Retailer 14£1,205 GBP
Retailer 5£1,332 GBP
Retailer 6£1,631 GBP
Retailer 13£1,902 GBP
Retailer 9£2,057 GBP
Retailer 7£2,186 GBP
Cape Diamonds£2,214 GBP
Retailer 15£2,258 GBP
Retailer 8£2,902 GBP
Retailer 2£3,441 GBP

39 data points across 15 retailers

14 retailers£619 GBP to £1,332 GBP

B
Cheapest Retailer
-
£619 GBP
$830 USD
B
Retailer 2
-
£1,038 GBP
$1,391 USD
View
B
Retailer 3
-
£1,130 GBP
$1,514 USD
View
B
Retailer 4
-
£1,163 GBP
$1,558 USD
View
Final sale: no returns
B
Retailer 5
-
£1,205 GBP
$1,614 USD
View
Retailer 6
-
£1,205 GBP
$1,614 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
£1,332 GBP
$1,785 USD
View
Retailer 8
-
£1,902 GBP
$2,548 USD
View
Price under review
Retailer 9
-
£2,057 GBP
€2,625 EUR
View
Price under review
Retailer 10
-
£2,186 GBP
$2,929 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_490193809 · Oct 29
£2,214 GBP
ZAR 47,933 ZAR
View
Price under review
10 more retailers have this diamond
Prices start from £619 GBPSave up to £713 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
1.05ct Round
£619 GBP