Heart|Lab Grown|IGI

1.20ct F VS1 Heart Lab Grown Diamond

VG • F/VS1 • IGI LG837622437

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837622437

Diamond specifications and retailer prices

From $227 USD
As of October 28, 2026
Save $809 USD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,036 USD at MOH London · As of October 25, 2026
View at MOH London

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 very-good cut grade and certified by IGI LG837622437 or 837622437. Listed at 15 retailers as of October 25, 2026, with prices from $227 to $1,036, a $809 spread on the same certified stone. MOH London lists it at $1,036. 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

1.20
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837622437
Dimensions6.42 × 7.53 × 4.24 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.42 mm7.53 mm1.20 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837622437
Side View
Table 64.0%Crown 36.8°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 56.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,036 USD|Low: $227 USD|High: $1,088 USD|Avg: $582 USD|-2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 3$227 USD
Retailer 4$380 USD
Retailer 8$393 USD
Retailer 2$396 USD
Retailer 10$428 USD
Retailer 6$540 USD
Retailer 5$658 USD
Retailer 7$752 USD
Retailer 11$766 USD
Retailer 9$900 USD
MOH London$1,036 USD

35 data points across 11 retailers

15 retailers$227 USD to $1,036 USD

A
Retailer 1
-
$178 USD
Price last confirmed 26 days ago
Returns within 21 days
A
Retailer 2
-
$211 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
$227 USD
View
Final sale: no returns
A
Retailer 4
-
$230 USD
View
Price last confirmed 25 days ago
Returns within 30 days
A
Retailer 5
-
$380 USD
ZAR 6,141 ZAR
View
Returns within 7 days
A
Retailer 6
-
$393 USD
View
Returns within 30 days
A
Retailer 7
-
$396 USD
£312 GBP
View
Returns within 30 days
B+
Retailer 8
-
$428 USD
View
Returns within 30 days
B+
Retailer 9
-
$540 USD
A$831 AUD
View
B
Retailer 10
-
$658 USD
A$1,012 AUD
View
Returns within 30 days
B
Retailer 11
-
$740 USD
View
Price last confirmed 28 days ago
Returns within 30 days
B
Retailer 12
-
$752 USD
View
Returns within 30 days
B
Retailer 13
-
$766 USD
View
Returns within 90 days
B
Retailer 14
-
$900 USD
View
Returns within 30 days
Most Expensive
B
MOH London
LG837622437 · Oct 25
$1,036 USD
£816 GBP
View
14 more retailers have this diamond
Prices start from $227 USDSave up to $809 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
$227 USD