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Heart|Lab Grown|IGI

1.21ct F VVS2 Heart Lab Grown Diamond

EX • F/VVS2 • IGI LG823686855

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823686855

Diamond specifications and retailer prices

From £150 GBP
$201 USD
As of November 1, 2026
Save £83 GBP (36%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £232 GBP at Loose Grown Diamond · As of November 1, 2026
View at Loose Grown Diamond

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG823686855 or 823686855. Listed at 2 retailers as of November 1, 2026, with prices from £150 to £232, a £83 spread on the same certified stone. Loose Grown Diamond lists it at £232. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823686855
Dimensions7.37 × 6.72 × 4.29 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.37 mm6.72 mm1.21 ctF / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823686855
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 39.6°CuletDepth 58.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £232 GBP|Low: £150 GBP|High: £246 GBP|Avg: £213 GBP|+2.0%
Loose Grown Diamond
Retailer 2
October 29, 2026
Retailer 2£150 GBP
Loose Grown Diamond£232 GBP

8 data points across 2 retailers

2 retailers£150 GBP to £232 GBP

A
Cheapest Retailer
-
£150 GBP
$201 USD
Final sale: no returns
Most Expensive
B+
Loose Grown Diamond
823686855 · Nov 1
£232 GBP
$312 USD
View
1 more retailer has this diamond
Prices start from £150 GBPSave up to £83 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
1.21ct Heart
£150 GBP