Heart|Lab Grown|IGI

1.21ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG812606560

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG812606560

Diamond specifications and retailer prices

From $491 USD
As of November 1, 2026
Save $669 USD (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,160 USD at MOH London · As of November 1, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG812606560 or 812606560. Listed at 8 retailers as of November 1, 2026, with prices from $491 to $1,160, a $669 spread on the same certified stone. MOH London lists it at $1,160. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812606560
Dimensions7.19 × 6.44 × 4.39 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
7.19 mm6.44 mm1.21 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812606560
Side View
Table 62.0%Crown 39.8°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,160 USD|Low: $466 USD|High: $1,173 USD|Avg: $786 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4$491 USD
Retailer 5$529 USD
Retailer 2$546 USD
Retailer 7$591 USD
Retailer 6$980 USD
Retailer 8$982 USD
Retailer 3$1,087 USD
MOH London$1,160 USD

42 data points across 8 retailers

8 retailers$491 USD to $1,160 USD

A
Cheapest Retailer
-
$491 USD
B+
Retailer 2
-
$529 USD
View
B+
Retailer 3
-
$546 USD
£430 GBP
View
B+
Retailer 4
-
$591 USD
View
B
Retailer 5
-
$982 USD
View
B
Retailer 6
-
$1,000 USD
View
Retailer 7
-
$1,087 USD
A$1,672 AUD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG812606560 · Nov 1
$1,160 USD
£913 GBP
View
7 more retailers have this diamond
Prices start from $491 USDSave up to $669 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
$491 USD