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Heart|Lab Grown|IGI

0.78ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG623420407

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG623420407

Diamond specifications and retailer prices

From $307 AUD
$216 USD
As of November 1, 2026
Save $1,360 AUD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,634 AUD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

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 LG623420407 or 623420407. Listed at 16 retailers as of November 1, 2026, with a 442% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623420407
Dimensions5.75 × 6.24 × 3.71 mm
L/W Ratio1.09
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
5.75 mm6.24 mm0.78 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG623420407
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 42.4°Culet: NoneDepth 59.5%

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: $2,634 AUD|Low: $307 AUD|High: $2,776 AUD|Avg: $983 AUD|-5.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$307 AUD
Retailer 10$326 AUD
Retailer 9$457 AUD
Retailer 8$514 AUD
Retailer 3$683 AUD
Retailer 2$690 AUD
Retailer 5$1,098 AUD
Retailer 4$1,506 AUD
Retailer 7$1,668 AUD
Do Amore Diamonds$2,634 AUD

42 data points across 10 retailers

16 retailers$307 AUD to $1,668 AUD

Retailer 1
-
$263 AUD
$185 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$307 AUD
$216 USD
View
Final sale: no returns
Retailer 3
-
$319 AUD
$224 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$326 AUD
$229 USD
View
Retailer 5
-
$340 AUD
$239 USD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
$457 AUD
$321 USD
View
B+
Retailer 7
-
$514 AUD
$361 USD
View
B+
Retailer 8
-
$683 AUD
ZAR 7,750 ZAR
View
B+
Retailer 9
-
$690 AUD
£381 GBP
View
B
Retailer 10
-
$1,096 AUD
$770 USD
View
B
Retailer 11
-
$1,098 AUD
$771 USD
View
Retailer 12
-
$1,209 AUD
$849 USD
View
Price last confirmed 32 days ago
B
Retailer 13
-
$1,453 AUD
$1,021 USD
View
B
Retailer 14
-
$1,506 AUD
£833 GBP
View
B
Retailer 15
-
$1,668 AUD
$1,172 USD
View
Most Expensive
Do Amore Diamonds
27-442BAE144 · Nov 1
$2,634 AUD
$1,850 USD
View
Price under review
15 more retailers have this diamond
Prices start from $307 AUDSave up to $1,360 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
$307 AUD