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Heart|Lab Grown|IGI

1.09ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG808638928

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG808638928

Diamond specifications and retailer prices

From £172 GBP
HK$1,800 HKD
As of November 1, 2026
Save £642 GBP (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £813 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.09ct lab-grown heart diamond

This 1.09ct lab-grown heart sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG808638928 or 808638928. Listed at 21 retailers as of October 26, 2026, with prices from £172 to £813, a £642 spread on the same certified stone. Brilliant Earth lists it at £813. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808638928
Dimensions6.64 × 7.00 × 4.18 mm
L/W Ratio1.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.64 mm7.00 mm1.09 ctG / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG808638928
Side View
Table 67.0%Crown 36.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £813 GBP|Low: £118 GBP|High: £813 GBP|Avg: £358 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 11£122 GBP
Retailer 9£136 GBP
Retailer 7£141 GBP
Retailer 6£151 GBP
Retailer 14£172 GBP
Retailer 18£185 GBP
Retailer 2£252 GBP
Retailer 3£255 GBP
Retailer 19£265 GBP
Retailer 5£272 GBP
Retailer 17£277 GBP
Retailer 21£324 GBP
Retailer 8£334 GBP
Retailer 15£389 GBP
Retailer 13£409 GBP
Retailer 4£485 GBP
Retailer 16£487 GBP
Retailer 12£526 GBP
Retailer 20£706 GBP
Retailer 10£803 GBP
Brilliant Earth£813 GBP

34 data points across 21 retailers

21 retailers£172 GBP to £813 GBP

Retailer 1
-
£122 GBP
$163 USD
Price last confirmed 9 days ago
Retailer 2
-
£141 GBP
$189 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£151 GBP
$202 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£172 GBP
HK$1,800 HKD
View
A
Retailer 5
-
£185 GBP
View
A
Retailer 6
-
£252 GBP
€321 EUR
View
Retailer 7
-
£255 GBP
ZAR 5,520 ZAR
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£265 GBP
View
Retailer 9
-
£272 GBP
$364 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£277 GBP
$371 USD
View
Retailer 11
-
£324 GBP
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£334 GBP
$447 USD
View
B
Retailer 13
-
£389 GBP
$521 USD
View
B+
Retailer 14
-
£409 GBP
SGD 740 SGD
View
Retailer 15
-
£485 GBP
$650 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
£487 GBP
$652 USD
View
B
Retailer 17
-
£526 GBP
$705 USD
View
B
Retailer 18
-
£706 GBP
View
Retailer 19
-
£803 GBP
$1,075 USD
View
Price last confirmed 8 days ago
B
Retailer 20
-
£813 GBP
$1,090 USD
View
Most Expensive
B
Brilliant Earth
20143691A · Oct 26
£813 GBP
$1,090 USD
View
20 more retailers have this diamond
Prices start from £172 GBPSave up to £642 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 Heart
£172 GBP