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Heart|Lab Grown|IGI

0.78ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG683590728

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG683590728

Diamond specifications and retailer prices

From $389 AUD
$273 USD
As of October 30, 2026
Save $1,345 AUD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,734 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct lab-grown heart diamond

This 0.78ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG683590728 or 683590728. Listed at 13 retailers as of October 29, 2026, with prices from $389 to $1,734, a $1,345 spread on the same certified stone. MOH London lists it at $1,734. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.78
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683590728
Dimensions5.60 × 6.43 × 3.71 mm
L/W Ratio1.15
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
5.60 mm6.43 mm0.78 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683590728
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 57.7%

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: $1,734 AUD|Low: $347 AUD|High: $2,162 AUD|Avg: $950 AUD|-18.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8$347 AUD
Retailer 10$389 AUD
Retailer 11$430 AUD
Retailer 9$451 AUD
Retailer 3$498 AUD
Retailer 7$723 AUD
Retailer 6$763 AUD
Retailer 2$824 AUD
Retailer 5$1,094 AUD
Retailer 12$1,469 AUD
Retailer 4$1,718 AUD
MOH London$1,734 AUD

41 data points across 12 retailers

13 retailers$389 AUD to $1,734 AUD

Retailer 1
-
$347 AUD
$244 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$389 AUD
$273 USD
View
Final sale: no returns
Retailer 3
-
$430 AUD
$302 USD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$451 AUD
$317 USD
View
Retailer 5
-
$498 AUD
$350 USD
View
Price last confirmed 34 days ago
B
Retailer 6
-
$723 AUD
$508 USD
View
B
Retailer 7
-
$763 AUD
View
B
Retailer 8
-
$824 AUD
£456 GBP
View
B
Retailer 9
-
$1,094 AUD
View
Retailer 10
-
$1,384 AUD
$972 USD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$1,469 AUD
$1,032 USD
View
B
Retailer 12
-
$1,718 AUD
£950 GBP
View
Most Expensive
B
MOH London
LG683590728 · Oct 29
$1,734 AUD
£959 GBP
View
12 more retailers have this diamond
Prices start from $389 AUDSave up to $1,345 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
0.78ct Heart
$389 AUD