Heart|Lab Grown|IGI

1.20ct E VVS1 Heart Lab Grown Diamond

VG • E/VVS1 • IGI LG831679846

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831679846

Diamond specifications and retailer prices

From $231 USD
As of October 29, 2026
Save $819 USD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,050 USD at Brilliant Earth · As of October 29, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG831679846 or 831679846. Listed at 10 retailers as of October 29, 2026, with prices from $231 to $1,050, a $819 spread on the same certified stone. Brilliant Earth lists it at $1,050. 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
E
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831679846
Dimensions6.53 × 7.28 × 4.23 mm
L/W Ratio1.11
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
6.53 mm7.28 mm1.20 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831679846
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 58.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,050 USD|Low: $231 USD|High: $1,050 USD|Avg: $612 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$231 USD
Retailer 8$255 USD
Retailer 3$314 USD
Retailer 2$442 USD
Retailer 4$470 USD
Retailer 6$549 USD
Retailer 10$831 USD
Retailer 5$868 USD
Retailer 7$874 USD
Brilliant Earth$1,050 USD

2 data points across 10 retailers

10 retailers$231 USD to $1,050 USD

A
Cheapest Retailer
-
$231 USD
Final sale: no returns
A
Retailer 2
-
$255 USD
View
A
Retailer 3
-
$314 USD
£247 GBP
View
Retailer 4
-
$442 USD
View
B+
Retailer 5
-
$470 USD
£370 GBP
View
B+
Retailer 6
-
$549 USD
View
B
Retailer 7
-
$831 USD
SGD 1,123 SGD
View
B
Retailer 8
-
$868 USD
View
B
Retailer 9
-
$874 USD
View
Most Expensive
B
Brilliant Earth
22348517A · Oct 29
$1,050 USD
View
9 more retailers have this diamond
Prices start from $231 USDSave up to $819 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
$231 USD