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Heart|Lab Grown|IGI

0.77ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818671770

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818671770

Diamond specifications and retailer prices

From $500 AUD
As of November 5, 2026
Save $1,726 AUD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,227 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 0.77ct lab-grown heart diamond

This 0.77ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818671770 or 818671770. Listed at 17 retailers as of November 3, 2026, with prices from $500 to $2,227, a $1,726 spread on the same certified stone. MOH London lists it at $2,227. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.77
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818671770
Dimensions5.73 × 6.27 × 3.63 mm
L/W Ratio1.09
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
5.73 mm6.27 mm0.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818671770
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 39°Culet: NoneDepth 57.9%

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 5
Current: $2,227 AUD|Low: $500 AUD|High: $2,641 AUD|Avg: $1,248 AUD|-14.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12$500 AUD
Retailer 4$669 AUD
Retailer 10$770 AUD
Retailer 8$784 AUD
Retailer 6$902 AUD
Retailer 2$981 AUD
Retailer 5$1,008 AUD
Retailer 11$1,252 AUD
Retailer 7$1,629 AUD
Retailer 3$1,852 AUD
Retailer 9$2,221 AUD
MOH London$2,227 AUD

38 data points across 12 retailers

17 retailers$500 AUD to $2,227 AUD

Retailer 1
-
$453 AUD
Price last confirmed 28 days ago
A
Retailer 2
-
$500 AUD
View
Final sale: no returns
Retailer 3
-
$563 AUD
View
Price last confirmed 33 days ago
Retailer 4
-
$563 AUD
View
Price last confirmed 24 days ago
Retailer 5
-
$603 AUD
View
Price last confirmed 37 days ago
Retailer 6
-
$660 AUD
View
Price last confirmed 41 days ago
A
Retailer 7
-
$770 AUD
View
A
Retailer 8
-
$784 AUD
View
B+
Retailer 9
-
$902 AUD
View
B+
Retailer 10
-
$981 AUD
View
B+
Retailer 11
-
$1,008 AUD
View
B+
Retailer 12
-
$1,252 AUD
View
B
Retailer 13
-
$1,629 AUD
View
Retailer 14
-
$1,809 AUD
View
Price last confirmed 31 days ago
B
Retailer 15
-
$1,852 AUD
View
B
Retailer 16
-
$2,221 AUD
View
Most Expensive
B
MOH London
LG818671770 · Nov 3
$2,227 AUD
£1,230 GBP
View
16 more retailers have this diamond
Prices start from $500 AUDSave up to $1,726 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
0.77ct Heart
$500 AUD