Heart|Lab Grown|IGI

1.20ct F VS1 Heart Lab Grown Diamond

EX • F/VS1 • IGI LG840652544

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840652544

Diamond specifications and retailer prices

From $402 USD
£316 GBP
As of October 24, 2026
Save $358 USD (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $760 USD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 1.2ct lab-grown heart diamond

This 1.2ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840652544 or 840652544. Listed at 2 retailers as of October 24, 2026, with prices from $402 to $760, a $358 spread on the same certified stone. Brilliant Earth lists it at $760. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840652544
Dimensions6.54 × 7.13 × 4.41 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.54 mm7.13 mm1.20 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840652544
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: $760 USD|Low: $201 USD|High: $760 USD|Avg: $529 USD
Brilliant Earth
Retailer 2
Retailer 3
October 24, 2026
Retailer 3$201 USD
Retailer 2$402 USD
Brilliant Earth$760 USD

20 data points across 3 retailers

2 retailers$402 USD to $760 USD

A
Cheapest Retailer
-
$402 USD
£316 GBP
Most Expensive
B
Brilliant Earth
21619830A · Oct 24
$760 USD
View
1 more retailer has this diamond
Prices start from $402 USDSave up to $358 USD

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
1.20ct Heart
$402 USD