CaratHunter
Plans
Round|Lab Grown|IGI

1.80ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG571300298

Shape and cutting style on the report: Round brilliant

Certificate IGI LG571300298

Diamond specifications and retailer prices

From $521 AUD
$365 USD
As of November 1, 2026
Save $1,065 AUD (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,586 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG571300298 or 571300298. Listed at 11 retailers as of November 1, 2026, with prices from $521 to $1,586, a $1,065 spread on the same certified stone. MOH London lists it at $1,586. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.80
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571300298
Dimensions7.91 × 7.85 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.91 mm7.85 mm1.80 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG571300298
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.2%

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: $1,586 AUD|Low: $261 AUD|High: $1,644 AUD|Avg: $860 AUD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$367 AUD
Retailer 9$405 AUD
Retailer 7$521 AUD
Retailer 2$736 AUD
Retailer 5$773 AUD
Retailer 6$826 AUD
Retailer 4$1,277 AUD
Retailer 3$1,306 AUD
MOH London$1,586 AUD

38 data points across 9 retailers

11 retailers$521 AUD to $1,586 AUD

Retailer 1
-
$327 AUD
$229 USD
Price last confirmed 34 days ago
Retailer 2
-
$380 AUD
$266 USD
View
Price last confirmed 41 days ago
Retailer 3
-
$400 AUD
$280 USD
View
Price last confirmed 34 days ago
B+
Retailer 4
-
$521 AUD
$365 USD
View
A
Retailer 5
-
$736 AUD
£406 GBP
View
A
Retailer 6
-
$773 AUD
$542 USD
View
A
Retailer 7
-
$826 AUD
$579 USD
View
B
Retailer 8
-
$1,277 AUD
$895 USD
View
Retailer 9
-
$1,303 AUD
$913 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$1,306 AUD
$915 USD
View
Most Expensive
B
MOH London
LG571300298 · Nov 1
$1,586 AUD
£875 GBP
View
10 more retailers have this diamond
Prices start from $521 AUDSave up to $1,065 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
1.80ct Round
$521 AUD