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Round|Lab Grown|IGI

1.40ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG818686580

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686580

Diamond specifications and retailer prices

From $326 AUD
$229 USD
As of October 29, 2026
Save $1,297 AUD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,623 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686580 or 818686580. Listed at 16 retailers as of October 28, 2026, with prices from $326 to $1,623, a $1,297 spread on the same certified stone. Brilliant Earth lists it at $1,623. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686580
Dimensions7.13 × 7.10 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.13 mm7.10 mm1.40 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686580
Side View
Table 60.0%Crown 36.1°Girdle: Slightly ThickPavilion 40.4°Culet: NoneDepth 61.4%

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 29
Current: $1,623 AUD|Low: $326 AUD|High: $1,751 AUD|Avg: $1,026 AUD|-7.3%
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
October 29, 2026
Retailer 11$326 AUD
Retailer 12$404 AUD
Retailer 13$686 AUD
Retailer 6$694 AUD
Retailer 2$732 AUD
Retailer 5$759 AUD
Retailer 9$890 AUD
Retailer 7$985 AUD
Retailer 10$1,059 AUD
Retailer 4$1,373 AUD
Retailer 3$1,483 AUD
Retailer 8$1,620 AUD
Brilliant Earth$1,623 AUD

29 data points across 13 retailers

16 retailers$326 AUD to $1,623 AUD

A
Cheapest Retailer
-
$326 AUD
$229 USD
A
Retailer 2
-
$377 AUD
$265 USD
View
A
Retailer 3
-
$404 AUD
$284 USD
View
A
Retailer 4
-
$404 AUD
$284 USD
View
A
Retailer 5
-
$686 AUD
$482 USD
View
A
Retailer 6
-
$694 AUD
ZAR 7,874 ZAR
View
A
Retailer 7
-
$732 AUD
€490 EUR
View
A
Retailer 8
-
$759 AUD
$533 USD
View
A
Retailer 9
-
$890 AUD
$625 USD
View
A
Retailer 10
-
$985 AUD
View
B+
Retailer 11
-
$1,059 AUD
$744 USD
View
B+
Retailer 12
-
$1,298 AUD
$912 USD
View
B+
Retailer 13
-
$1,373 AUD
$964 USD
View
B+
Retailer 14
-
$1,513 AUD
$1,063 USD
View
B+
Retailer 15
-
$1,620 AUD
£896 GBP
View
Most Expensive
B+
Brilliant Earth
21297540A · Oct 28
$1,623 AUD
$1,140 USD
View
15 more retailers have this diamond
Prices start from $326 AUDSave up to $1,297 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
1.40ct Round
$326 AUD