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Round|Lab Grown|IGI

1.09ct H VVS1 Round Lab Grown Diamond

ID • H/VVS1 • IGI LG799681705

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799681705

Diamond specifications and retailer prices

From £250 GBP
As of October 30, 2026
Save £198 GBP (44%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £448 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG799681705 or 799681705. Listed at 3 retailers as of October 30, 2026, with prices from £250 to £448, a £198 spread on the same certified stone. Brilliant Earth lists it at £448. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
H
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799681705
Dimensions6.64 × 6.60 × 4.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.64 mm6.60 mm1.09 ctH / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799681705
Side View
Table 58.0%Crown 33.7°Girdle: MediumPavilion 41.3°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £448 GBP|Low: £234 GBP|High: £761 GBP|Avg: £368 GBP|-41.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 4£239 GBP
Retailer 5£243 GBP
Retailer 2£250 GBP
Retailer 3£320 GBP
Retailer 6£413 GBP
Brilliant Earth£448 GBP

37 data points across 6 retailers

3 retailers£250 GBP to £448 GBP

Retailer 1
-
£239 GBP
ZAR 5,184 ZAR
Price last confirmed 45 days ago
A
Retailer 2
-
£250 GBP
View
Most Expensive
B+
Brilliant Earth
19424209A · Oct 31
£448 GBP
$600 USD
View
2 more retailers have this diamond
Prices start from £250 GBPSave up to £198 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
£250 GBP