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Heart|Lab Grown|IGI

1.55ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG843604947

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843604947

Diamond specifications and retailer prices

From $763 AUD
£422 GBP
As of November 1, 2026
Save $4,194 AUD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,957 AUD at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

About this 1.55ct lab-grown heart diamond

This 1.55ct 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 LG843604947 or 843604947. Listed at 12 retailers as of October 31, 2026, with prices from $763 to $4,957, a $4,194 spread on the same certified stone. Novita Diamonds lists it at $4,957. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843604947
Dimensions7.65 × 7.16 × 4.87 mm
L/W Ratio1.07
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
7.65 mm7.16 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843604947
Side View
Table 59.0%Crown 36.3°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.7%

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: Nov 1
Current: $4,957 AUD|Low: $763 AUD|High: $9,582 AUD|Avg: $2,148 AUD
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$763 AUD
Retailer 8$940 AUD
Retailer 11$1,043 AUD
Retailer 5$1,176 AUD
Retailer 4$1,224 AUD
Retailer 7$1,680 AUD
Retailer 3$1,748 AUD
Retailer 9$1,918 AUD
Retailer 12$2,824 AUD
Retailer 6$4,015 AUD
Retailer 10$4,684 AUD
Novita Diamonds$4,957 AUD

15 data points across 12 retailers

12 retailers$763 AUD to $4,957 AUD

A
Cheapest Retailer
-
$763 AUD
£422 GBP
A
Retailer 2
-
$940 AUD
$660 USD
View
A
Retailer 3
-
$1,043 AUD
$733 USD
View
A
Retailer 4
-
$1,176 AUD
€787 EUR
View
A
Retailer 5
-
$1,224 AUD
$860 USD
View
B+
Retailer 6
-
$1,680 AUD
View
B+
Retailer 7
-
$1,748 AUD
$1,228 USD
View
B+
Retailer 8
-
$1,918 AUD
$1,347 USD
View
B
Retailer 9
-
$2,824 AUD
£1,562 GBP
View
B
Retailer 10
-
$4,015 AUD
$2,820 USD
View
B
Retailer 11
-
$4,684 AUD
$3,290 USD
View
Most Expensive
B
Novita Diamonds
cert_843604947 · Oct 31
$4,957 AUD
View
11 more retailers have this diamond
Prices start from $763 AUDSave up to $4,194 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
1.55ct Heart
$763 AUD