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Heart|Lab Grown|IGI

1.05ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG843676289

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843676289

Diamond specifications and retailer prices

From £133 GBP
$178 USD
As of November 1, 2026
Save £367 GBP (73%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £500 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.05ct lab-grown heart diamond

This 1.05ct lab-grown heart sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843676289 or 843676289. Listed at 3 retailers as of October 31, 2026, with prices from £133 to £500, a £367 spread on the same certified stone. Brilliant Earth lists it at £500. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843676289
Dimensions6.10 × 6.97 × 4.29 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.10 mm6.97 mm1.05 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843676289
Side View
Table 59.0%Crown 35.2°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £500 GBP|Low: £133 GBP|High: £500 GBP|Avg: £323 GBP
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£133 GBP
Retailer 2£270 GBP
Brilliant Earth£500 GBP

20 data points across 3 retailers

3 retailers£133 GBP to £500 GBP

A
Cheapest Retailer
-
£133 GBP
$178 USD
Final sale: no returns
B+
Retailer 2
-
£270 GBP
View
Most Expensive
B
Brilliant Earth
21815979A · Oct 31
£500 GBP
$670 USD
View
2 more retailers have this diamond
Prices start from £133 GBPSave up to £367 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 Heart
£133 GBP