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Heart|Lab Grown|IGI

1.21ct E VVS1 Heart Lab Grown Diamond

VG • E/VVS1 • IGI LG831679964

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831679964

Diamond specifications and retailer prices

From $207 USD
As of November 2, 2026
Save $853 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,060 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.21ct lab-grown heart diamond

This 1.21ct 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 LG831679964 or 831679964. Listed at 18 retailers as of November 2, 2026, with prices from $207 to $1,060, a $853 spread on the same certified stone. Brilliant Earth lists it at $1,060. 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

1.21
Carat
E
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831679964
Dimensions7.38 × 6.57 × 4.18 mm
L/W Ratio1.12
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
7.38 mm6.57 mm1.21 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831679964
Side View
Table 62.0%Crown 37.2°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 56.6%

Caratlytics Score

How it works →
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: Nov 2
Current: $1,060 USD|Low: $207 USD|High: $1,060 USD|Avg: $584 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 3$207 USD
Retailer 10$232 USD
Retailer 13$241 USD
Retailer 9$257 USD
Retailer 11$315 USD
Retailer 4$444 USD
Retailer 14$444 USD
Retailer 12$474 USD
Retailer 18$501 USD
Retailer 7$557 USD
Retailer 2$629 USD
Retailer 16$827 USD
Retailer 17$830 USD
Retailer 5$837 USD
Retailer 6$875 USD
Retailer 8$880 USD
Retailer 15$1,031 USD
Brilliant Earth$1,060 USD

5 data points across 18 retailers

18 retailers$207 USD to $1,060 USD

A
Cheapest Retailer
-
$207 USD
A
Retailer 2
-
$232 USD
View
Final sale: no returns
A
Retailer 3
-
$241 USD
View
A
Retailer 4
-
$257 USD
View
A
Retailer 5
-
$315 USD
£248 GBP
View
B+
Retailer 6
-
$444 USD
View
B+
Retailer 7
-
$444 USD
ZAR 7,176 ZAR
View
B+
Retailer 8
-
$474 USD
£373 GBP
View
B+
Retailer 9
-
$501 USD
View
B+
Retailer 10
-
$557 USD
View
B+
Retailer 11
-
$629 USD
A$968 AUD
View
B
Retailer 12
-
$827 USD
View
B
Retailer 13
-
$830 USD
View
B
Retailer 14
-
$837 USD
SGD 1,131 SGD
View
B
Retailer 15
-
$875 USD
View
B
Retailer 16
-
$880 USD
View
B
Retailer 17
-
$1,031 USD
£812 GBP
View
Most Expensive
B
Brilliant Earth
22348929A · Nov 2
$1,060 USD
View
17 more retailers have this diamond
Prices start from $207 USDSave up to $853 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
1.21ct Heart
$207 USD