CaratHunter
Plans
Round|Lab Grown|IGI

1.78ct G VVS2 Round Lab Grown Diamond

ID • G/VVS2 • IGI LG781609698

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781609698

Diamond specifications and retailer prices

From $346 AUD
$243 USD
As of October 29, 2026
Save $1,889 AUD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,235 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG781609698 or 781609698. Listed at 22 retailers as of October 28, 2026, with prices from $346 to $2,235, a $1,889 spread on the same certified stone. Brilliant Earth lists it at $2,235. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781609698
Dimensions7.78 × 7.83 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm7.83 mm1.78 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781609698
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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 29
Current: $2,235 AUD|Low: $339 AUD|High: $2,434 AUD|Avg: $1,024 AUD|-8.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 13$346 AUD
Retailer 9$401 AUD
Retailer 8$428 AUD
Retailer 2$670 AUD
Retailer 16$713 AUD
Retailer 3$720 AUD
Retailer 5$737 AUD
Retailer 15$800 AUD
Retailer 12$811 AUD
Retailer 17$894 AUD
Retailer 7$999 AUD
Retailer 11$1,102 AUD
Retailer 6$1,379 AUD
Retailer 10$1,453 AUD
Retailer 4$1,608 AUD
Retailer 14$1,728 AUD
Retailer 19$1,744 AUD
Retailer 18$1,903 AUD
Brilliant Earth$2,235 AUD

32 data points across 19 retailers

22 retailers$346 AUD to $2,235 AUD

A
Cheapest Retailer
-
$346 AUD
$243 USD
A
Retailer 2
-
$401 AUD
$282 USD
View
A
Retailer 3
-
$428 AUD
$301 USD
View
A
Retailer 4
-
$438 AUD
$308 USD
View
A
Retailer 5
-
$670 AUD
£371 GBP
View
A
Retailer 6
-
$713 AUD
€477 EUR
View
B+
Retailer 7
-
$720 AUD
$506 USD
View
A
Retailer 8
-
$737 AUD
ZAR 8,363 ZAR
View
A
Retailer 9
-
$800 AUD
$562 USD
View
A
Retailer 10
-
$811 AUD
£449 GBP
View
B+
Retailer 11
-
$894 AUD
$628 USD
View
B+
Retailer 12
-
$999 AUD
View
B+
Retailer 13
-
$1,102 AUD
$774 USD
View
Retailer 14
-
$1,285 AUD
$903 USD
View
Price last confirmed 44 days ago
B+
Retailer 15
-
$1,379 AUD
$969 USD
View
B
Retailer 16
-
$1,453 AUD
$1,021 USD
View
B
Retailer 17
-
$1,554 AUD
$1,092 USD
View
B
Retailer 18
-
$1,608 AUD
$1,130 USD
View
B
Retailer 19
-
$1,728 AUD
£956 GBP
View
B
Retailer 20
-
$1,744 AUD
$1,225 USD
View
B
Retailer 21
-
$1,903 AUD
$1,337 USD
View
Most Expensive
B
Brilliant Earth
18294398A · Oct 28
$2,235 AUD
$1,570 USD
View
21 more retailers have this diamond
Prices start from $346 AUDSave up to $1,889 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
1.78ct Round
$346 AUD