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Heart|Lab Grown|IGI

1.20ct D VS2 Heart Lab Grown Diamond

EX • D/VS2 • IGI LG833682689

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG833682689

Diamond specifications and retailer prices

From £148 GBP
$196 USD
As of October 29, 2026
Save £81 GBP (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £610 GBP at Brilliant Earth · As of October 1, 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 D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG833682689 or 833682689. Listed at 3 retailers as of October 28, 2026, with a 55% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833682689
Dimensions6.45 × 7.52 × 4.30 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.45 mm7.52 mm1.20 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833682689
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 57.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £148 GBP|Low: £148 GBP|High: £623 GBP|Avg: £380 GBP|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 27, 2026
Retailer 1£148 GBP
Retailer 2£228 GBP
Retailer 4£333 GBP
Retailer 3£334 GBP
Retailer 5£623 GBP

13 data points across 5 retailers

3 retailers£148 GBP to £228 GBP

A
Cheapest Retailer
-
£148 GBP
$196 USD
Final sale: no returns
B+
Retailer 2
-
£228 GBP
$303 USD
View
Most Expensive
B
Brilliant Earth
21270654A · Oct 1
£610 GBP
$810 USD
View
Price last confirmed 27 days ago
2 more retailers have this diamond
Prices start from £148 GBPSave up to £81 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
1.20ct Heart
£148 GBP