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Heart|Lab Grown|IGI

1.22ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG837646991

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837646991

Diamond specifications and retailer prices

From $369 AUD
As of November 4, 2026
Save $2,903 AUD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,271 AUD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.22ct lab-grown heart diamond

This 1.22ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837646991 or 837646991. Listed at 13 retailers as of November 4, 2026, with prices from $369 to $3,271, a $2,903 spread on the same certified stone. Do Amore Diamonds lists it at $3,271. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837646991
Dimensions7.21 × 6.32 × 4.63 mm
L/W Ratio1.14
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
7.21 mm6.32 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837646991
Side View
Table 56.0%Crown 34.4°Girdle: STK-THKPavilion 41.9°Culet: NoneDepth 64.2%

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 4
Current: $3,271 AUD|Low: $361 AUD|High: $3,343 AUD|Avg: $1,500 AUD|-2.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 10$369 AUD
Retailer 2$516 AUD
Retailer 8$714 AUD
Retailer 12$761 AUD
Retailer 4$894 AUD
Retailer 5$1,180 AUD
Retailer 6$1,239 AUD
Retailer 11$1,404 AUD
Retailer 13$1,623 AUD
Retailer 7$2,023 AUD
Retailer 9$2,420 AUD
Retailer 3$2,843 AUD
Do Amore Diamonds$3,271 AUD

34 data points across 13 retailers

13 retailers$369 AUD to $3,271 AUD

A
Cheapest Retailer
-
$369 AUD
A
Retailer 2
-
$516 AUD
View
A
Retailer 3
-
$714 AUD
View
A
Retailer 4
-
$761 AUD
View
A
Retailer 5
-
$894 AUD
View
B+
Retailer 6
-
$1,180 AUD
View
B+
Retailer 7
-
$1,239 AUD
View
B+
Retailer 8
-
$1,404 AUD
View
B+
Retailer 9
-
$1,623 AUD
View
B+
Retailer 10
-
$2,023 AUD
View
B
Retailer 11
-
$2,420 AUD
View
B
Retailer 12
-
$2,843 AUD
View
Most Expensive
B
Do Amore Diamonds
27-4A63AF22A · Nov 4
$3,271 AUD
$2,290 USD
View
12 more retailers have this diamond
Prices start from $369 AUDSave up to $2,903 AUD

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
1.22ct Heart
$369 AUD