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Heart|Lab Grown|IGI

1.21ct E VS2 Heart Lab Grown Diamond

VG • E/VS2 • IGI LG678596550

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG678596550

Diamond specifications and retailer prices

From $308 USD
As of October 30, 2026
Save $760 USD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,068 USD at MOH London · As of October 29, 2026
View at MOH London

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 VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG678596550 or 678596550. Listed at 11 retailers as of October 29, 2026, with prices from $308 to $1,068, a $760 spread on the same certified stone. MOH London lists it at $1,068. 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
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678596550
Dimensions7.24 × 6.90 × 4.27 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.24 mm6.90 mm1.21 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG678596550
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 59.0%

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: Oct 30
Current: $1,068 USD|Low: $308 USD|High: $1,097 USD|Avg: $590 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4$308 USD
Retailer 8$320 USD
Retailer 2$411 USD
Retailer 3$429 USD
Retailer 5$435 USD
Retailer 10$546 USD
Retailer 9$554 USD
Retailer 7$759 USD
Retailer 6$785 USD
MOH London$1,068 USD

43 data points across 10 retailers

11 retailers$308 USD to $1,068 USD

B+
Cheapest Retailer
-
$308 USD
A
Retailer 2
-
$320 USD
HK$2,500 HKD
View
B+
Retailer 3
-
$411 USD
£323 GBP
View
B+
Retailer 4
-
$429 USD
€409 EUR
View
B+
Retailer 5
-
$435 USD
View
Retailer 6
-
$546 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$554 USD
View
Price last confirmed 11 days ago
B
Retailer 8
-
$759 USD
View
B
Retailer 9
-
$785 USD
View
B
Retailer 10
-
$790 USD
CA$1,098 CAD
View
Most Expensive
B
MOH London
LG678596550 · Oct 29
$1,068 USD
£841 GBP
View
10 more retailers have this diamond
Prices start from $308 USDSave up to $760 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
$308 USD