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Heart|Lab Grown|IGI

1.56ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG618401846

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG618401846

Diamond specifications and retailer prices

From $1,217 AUD
$855 USD
As of October 30, 2026
Save $5,536 AUD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,754 AUD at With Clarity · As of October 31, 2026
View at With Clarity

About this 1.56ct lab-grown heart diamond

This 1.56ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG618401846 or 618401846. Listed at 21 retailers as of October 30, 2026, with prices from $1,217 to $6,754, a $5,536 spread on the same certified stone. With Clarity lists it at $6,754. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618401846
Dimensions7.38 × 7.95 × 4.75 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
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 mm7.95 mm1.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618401846
Side View
Table 59.0%Crown 38.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,290 AUD|Low: $1,196 AUD|High: $6,754 AUD|Avg: $2,972 AUD|-3.6%
Retailer 1
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
With Clarity
November 1, 2026
Retailer 7$1,217 AUD
Retailer 3$1,324 AUD
Retailer 14$1,361 AUD
Retailer 16$1,411 AUD
Retailer 4$1,658 AUD
Retailer 17$1,742 AUD
Retailer 5$1,792 AUD
Retailer 9$2,022 AUD
Retailer 11$2,170 AUD
Retailer 13$2,529 AUD
Retailer 18$2,594 AUD
Retailer 15$2,958 AUD
Retailer 12$3,514 AUD
Retailer 2$3,968 AUD
Retailer 6$4,416 AUD
Retailer 8$4,894 AUD
Retailer 1$5,290 AUD
Retailer 10$6,492 AUD
With Clarity$6,754 AUD

31 data points across 19 retailers

21 retailers$1,217 AUD to $6,754 AUD

A
Cheapest Retailer
-
$1,217 AUD
$855 USD
A
Retailer 2
-
$1,324 AUD
$930 USD
View
A
Retailer 3
-
$1,361 AUD
$956 USD
View
Final sale: no returns
A
Retailer 4
-
$1,411 AUD
$991 USD
View
Retailer 5
-
$1,445 AUD
$1,015 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$1,658 AUD
$1,165 USD
View
B+
Retailer 7
-
$1,742 AUD
$1,224 USD
View
B+
Retailer 8
-
$1,792 AUD
$1,259 USD
View
B+
Retailer 9
-
$2,022 AUD
$1,420 USD
View
B+
Retailer 10
-
$2,170 AUD
£1,200 GBP
View
B+
Retailer 11
-
$2,529 AUD
€1,692 EUR
View
B+
Retailer 12
-
$2,594 AUD
ZAR 29,441 ZAR
View
B+
Retailer 13
-
$2,958 AUD
$2,078 USD
View
B+
Retailer 14
-
$3,514 AUD
View
B
Retailer 15
-
$3,968 AUD
$2,787 USD
View
B
Retailer 16
-
$4,180 AUD
$2,936 USD
View
B
Retailer 17
-
$4,416 AUD
$3,102 USD
View
B
Retailer 18
-
$4,894 AUD
$3,438 USD
View
B
Retailer 19
-
$5,290 AUD
£2,926 GBP
View
B
Retailer 20
-
$6,492 AUD
$4,560 USD
View
Most Expensive
B
With Clarity
618401846 · Oct 31
$6,754 AUD
$4,744 USD
View
20 more retailers have this diamond
Prices start from $1,217 AUDSave up to $5,536 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
1.56ct Heart
$1,217 AUD