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Round|Lab Grown|IGI

1.78ct G VVS2 Round Lab Grown Diamond

EX • G/VVS2 • IGI LG818685283

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818685283

Diamond specifications and retailer prices

From $341 AUD
$240 USD
As of October 26, 2026
Save $1,621 AUD (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,962 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 LG818685283 or 818685283. Listed at 23 retailers as of October 26, 2026, with prices from $341 to $1,962, a $1,621 spread on the same certified stone. Brilliant Earth lists it at $1,962. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818685283
Dimensions7.71 × 7.66 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.71 mm7.66 mm1.78 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818685283
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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: Oct 26
Current: $1,962 AUD|Low: $328 AUD|High: $2,460 AUD|Avg: $998 AUD|-10.4%
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
October 29, 2026
Retailer 3$341 AUD
Retailer 6$382 AUD
Retailer 9$397 AUD
Retailer 7$424 AUD
Retailer 12$572 AUD
Retailer 17$664 AUD
Retailer 11$679 AUD
Retailer 14$728 AUD
Retailer 13$796 AUD
Retailer 8$903 AUD
Retailer 15$988 AUD
Retailer 18$1,064 AUD
Retailer 10$1,362 AUD
Retailer 16$1,593 AUD
Retailer 2$1,706 AUD
Retailer 4$1,725 AUD
Retailer 5$1,880 AUD
Brilliant Earth$1,962 AUD

43 data points across 18 retailers

23 retailers$341 AUD to $1,962 AUD

A
Cheapest Retailer
-
$341 AUD
$240 USD
A
Retailer 2
-
$382 AUD
$269 USD
View
Final sale: no returns
A
Retailer 3
-
$397 AUD
$279 USD
View
A
Retailer 4
-
$424 AUD
$298 USD
View
A
Retailer 5
-
$424 AUD
$298 USD
View
B+
Retailer 6
-
$572 AUD
$402 USD
View
A
Retailer 7
-
$664 AUD
£368 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
$679 AUD
€455 EUR
View
A
Retailer 9
-
$728 AUD
ZAR 8,270 ZAR
View
A
Retailer 10
-
$796 AUD
£441 GBP
View
B+
Retailer 11
-
$880 AUD
$619 USD
View
B+
Retailer 12
-
$892 AUD
$627 USD
View
B+
Retailer 13
-
$903 AUD
$635 USD
View
B+
Retailer 14
-
$988 AUD
View
B+
Retailer 15
-
$1,064 AUD
$748 USD
View
B+
Retailer 16
-
$1,362 AUD
$958 USD
View
B
Retailer 17
-
$1,436 AUD
$1,010 USD
View
B
Retailer 18
-
$1,593 AUD
$1,120 USD
View
Price last confirmed 11 days ago
B
Retailer 19
-
$1,706 AUD
£945 GBP
View
B
Retailer 20
-
$1,725 AUD
$1,213 USD
View
B
Retailer 21
-
$1,732 AUD
$1,218 USD
View
B
Retailer 22
-
$1,880 AUD
$1,322 USD
View
Most Expensive
B
Brilliant Earth
21053173A · Oct 28
$1,962 AUD
$1,380 USD
View
22 more retailers have this diamond
Prices start from $341 AUDSave up to $1,621 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
$341 AUD