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Round|Lab Grown|IGI

1.09ct K VS1 Round Lab Grown Diamond

ID • K/VS1 • IGI LG843688967

Shape and cutting style on the report: Round modified brilliant

Certificate IGI LG843688967

Diamond specifications and retailer prices

From £267 GBP
As of November 5, 2026
Save £702 GBP (72%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £969 GBP at Friendly Diamonds · As of November 4, 2026
View at Friendly Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843688967 or 843688967. Listed at 5 retailers as of November 4, 2026, with prices from £267 to £969, a £702 spread on the same certified stone. Friendly Diamonds lists it at £969. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
K
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843688967
Dimensions6.52 × 6.50 × 3.75 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa Faint Brown
Top View
6.52 mm6.50 mm1.09 ctK / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843688967
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 57.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £969 GBP|Low: £409 GBP|High: £969 GBP|Avg: £556 GBP
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 2£409 GBP
Retailer 3£442 GBP
Retailer 4£530 GBP
Friendly Diamonds£969 GBP

10 data points across 4 retailers

5 retailers£267 GBP to £969 GBP

A
Cheapest Retailer
-
£267 GBP
A
Retailer 2
-
£409 GBP
View
A
Retailer 3
-
£442 GBP
View
B+
Retailer 4
-
£530 GBP
View
Most Expensive
B
Friendly Diamonds
6531091 · Nov 4
£969 GBP
$1,304 USD
View
4 more retailers have this diamond
Prices start from £267 GBPSave up to £702 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
1.09ct Round
£267 GBP