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Heart|Lab Grown|IGI

3.78ct E VVS2 Heart Lab Grown Diamond

ID • E/VVS2 • IGI LG770665521

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG770665521

Diamond specifications and retailer prices

From $854 AUD
$600 USD
As of October 30, 2026
Save $6,862 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,716 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.78ct lab-grown heart diamond

This 3.78ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG770665521 or 770665521. Listed at 22 retailers as of October 30, 2026, with prices from $854 to $7,716, a $6,862 spread on the same certified stone. Brilliant Earth lists it at $7,716. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.78
Carat
E
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770665521
Dimensions9.73 × 10.66 × 6.41 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm10.66 mm3.78 ctE / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770665521
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 42.2°Culet: NoneDepth 60.1%

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: $7,716 AUD|Low: $843 AUD|High: $12,300 AUD|Avg: $2,799 AUD|-37.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 9$854 AUD
Retailer 16$997 AUD
Retailer 15$1,059 AUD
Retailer 11$1,089 AUD
Retailer 10$1,260 AUD
Retailer 5$1,402 AUD
Retailer 19$1,488 AUD
Retailer 13$1,658 AUD
Retailer 17$1,828 AUD
Retailer 12$2,238 AUD
Retailer 3$2,301 AUD
Retailer 2$2,355 AUD
Retailer 6$2,740 AUD
Retailer 4$2,787 AUD
Retailer 7$3,382 AUD
Retailer 8$3,427 AUD
Retailer 14$3,462 AUD
Retailer 18$4,625 AUD
Brilliant Earth$7,716 AUD

33 data points across 19 retailers

22 retailers$854 AUD to $7,716 AUD

A
Cheapest Retailer
-
$854 AUD
$600 USD
A
Retailer 2
-
$997 AUD
$700 USD
View
Final sale: no returns
A
Retailer 3
-
$1,059 AUD
$744 USD
View
Retailer 4
-
$1,075 AUD
$755 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$1,089 AUD
$765 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,260 AUD
$885 USD
View
B+
Retailer 7
-
$1,402 AUD
$985 USD
View
A
Retailer 8
-
$1,488 AUD
$1,045 USD
View
A
Retailer 9
-
$1,658 AUD
£917 GBP
View
A
Retailer 10
-
$1,828 AUD
€1,223 EUR
View
A
Retailer 11
-
$2,238 AUD
View
A
Retailer 12
-
$2,301 AUD
ZAR 26,117 ZAR
View
A
Retailer 13
-
$2,355 AUD
$1,654 USD
View
B+
Retailer 14
-
$2,740 AUD
$1,925 USD
View
B+
Retailer 15
-
$2,787 AUD
$1,958 USD
View
B+
Retailer 16
-
$3,175 AUD
$2,230 USD
View
Retailer 17
-
$3,215 AUD
View
Price last confirmed 155 days ago
B+
Retailer 18
-
$3,382 AUD
$2,376 USD
View
B+
Retailer 19
-
$3,427 AUD
$2,407 USD
View
B+
Retailer 20
-
$3,462 AUD
$2,432 USD
View
B+
Retailer 21
-
$4,625 AUD
£2,558 GBP
View
Most Expensive
B
Brilliant Earth
17548752A · Oct 30
$7,716 AUD
$5,420 USD
View
21 more retailers have this diamond
Prices start from $854 AUDSave up to $6,862 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
3.78ct Heart
$854 AUD